/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_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 17:07:08,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 17:07:08,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 17:07:08,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 17:07:08,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 17:07:08,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 17:07:08,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 17:07:08,508 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 [2022-03-01 17:07:08,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 17:07:08,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 17:07:08,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 17:07:08,526 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 17:07:08,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 17:07:08,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 17:07:08,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 17:07:08,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 17:07:08,527 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 17:07:08,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 17:07:08,527 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 17:07:08,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 17:07:08,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 17:07:08,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 17:07:08,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:07:08,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 17:07:08,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 17:07:08,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 17:07:08,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 17:07:08,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 17:07:08,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 17:07:08,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 17:07:08,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 17:07:08,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 17:07:08,705 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 17:07:08,706 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 17:07:08,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl [2022-03-01 17:07:08,707 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_6.bpl' [2022-03-01 17:07:08,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 17:07:08,721 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 17:07:08,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 17:07:08,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 17:07:08,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 17:07:08,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,738 INFO L137 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 17:07:08,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 17:07:08,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 17:07:08,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 17:07:08,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 17:07:08,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 17:07:08,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 17:07:08,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 17:07:08,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 17:07:08,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/1) ... [2022-03-01 17:07:08,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 17:07:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 17:07:08,788 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) [2022-03-01 17:07:08,790 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 [2022-03-01 17:07:08,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-01 17:07:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-01 17:07:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-01 17:07:08,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-01 17:07:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-01 17:07:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-01 17:07:08,827 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-01 17:07:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-01 17:07:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-01 17:07:08,827 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-01 17:07:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-01 17:07:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-01 17:07:08,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-01 17:07:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-01 17:07:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-01 17:07:08,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 17:07:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 17:07:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 17:07:08,830 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-01 17:07:08,830 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-01 17:07:08,830 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-01 17:07:08,831 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 17:07:08,861 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 17:07:08,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 17:07:08,926 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 17:07:08,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 17:07:08,931 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 17:07:08,932 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:07:08 BoogieIcfgContainer [2022-03-01 17:07:08,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 17:07:08,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 17:07:08,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 17:07:08,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 17:07:08,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 05:07:08" (1/2) ... [2022-03-01 17:07:08,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf22f6c and model type example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 05:07:08, skipping insertion in model container [2022-03-01 17:07:08,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 05:07:08" (2/2) ... [2022-03-01 17:07:08,941 INFO L111 eAbstractionObserver]: Analyzing ICFG example_6.bpl [2022-03-01 17:07:08,943 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 17:07:08,944 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 17:07:08,944 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 17:07:08,944 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 17:07:08,989 INFO L148 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2022-03-01 17:07:09,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 17:07:09,026 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 [2022-03-01 17:07:09,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-01 17:07:09,048 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 63 transitions, 264 flow [2022-03-01 17:07:09,297 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4461 states, 4460 states have (on average 4.459865470852018) internal successors, (19891), 4460 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:09,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 4461 states, 4460 states have (on average 4.459865470852018) internal successors, (19891), 4460 states have internal predecessors, (19891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:09,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:09,347 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] [2022-03-01 17:07:09,348 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:09,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:09,354 INFO L85 PathProgramCache]: Analyzing trace with hash 880898761, now seen corresponding path program 1 times [2022-03-01 17:07:09,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:09,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78897887] [2022-03-01 17:07:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:09,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:09,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:09,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78897887] [2022-03-01 17:07:09,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78897887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:09,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:09,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:09,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013024844] [2022-03-01 17:07:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:09,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:09,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:09,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:09,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:09,549 INFO L87 Difference]: Start difference. First operand has 4461 states, 4460 states have (on average 4.459865470852018) internal successors, (19891), 4460 states have internal predecessors, (19891), 0 states have call successors, (0), 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 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:09,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:09,656 INFO L93 Difference]: Finished difference Result 3543 states and 15328 transitions. [2022-03-01 17:07:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:09,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:09,741 INFO L225 Difference]: With dead ends: 3543 [2022-03-01 17:07:09,741 INFO L226 Difference]: Without dead ends: 3543 [2022-03-01 17:07:09,743 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 [2022-03-01 17:07:09,787 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:09,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 25 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2022-03-01 17:07:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3543. [2022-03-01 17:07:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 3542 states have (on average 4.327498588368154) internal successors, (15328), 3542 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 15328 transitions. [2022-03-01 17:07:10,039 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 15328 transitions. Word has length 25 [2022-03-01 17:07:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:10,040 INFO L470 AbstractCegarLoop]: Abstraction has 3543 states and 15328 transitions. [2022-03-01 17:07:10,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 15328 transitions. [2022-03-01 17:07:10,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:10,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:10,052 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] [2022-03-01 17:07:10,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 17:07:10,053 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:10,055 INFO L85 PathProgramCache]: Analyzing trace with hash -203118425, now seen corresponding path program 1 times [2022-03-01 17:07:10,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:10,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35610562] [2022-03-01 17:07:10,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:10,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:10,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:10,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35610562] [2022-03-01 17:07:10,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35610562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:10,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:10,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:10,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292182937] [2022-03-01 17:07:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:10,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:10,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:10,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:10,102 INFO L87 Difference]: Start difference. First operand 3543 states and 15328 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:10,208 INFO L93 Difference]: Finished difference Result 2976 states and 12439 transitions. [2022-03-01 17:07:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:10,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:10,225 INFO L225 Difference]: With dead ends: 2976 [2022-03-01 17:07:10,225 INFO L226 Difference]: Without dead ends: 2976 [2022-03-01 17:07:10,228 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 [2022-03-01 17:07:10,230 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 37 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:10,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 21 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-03-01 17:07:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2022-03-01 17:07:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 4.181176470588236) internal successors, (12439), 2975 states have internal predecessors, (12439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 12439 transitions. [2022-03-01 17:07:10,307 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 12439 transitions. Word has length 25 [2022-03-01 17:07:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:10,308 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 12439 transitions. [2022-03-01 17:07:10,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 12439 transitions. [2022-03-01 17:07:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:10,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:10,316 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] [2022-03-01 17:07:10,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 17:07:10,317 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:10,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:10,318 INFO L85 PathProgramCache]: Analyzing trace with hash 872033107, now seen corresponding path program 1 times [2022-03-01 17:07:10,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:10,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584150741] [2022-03-01 17:07:10,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:10,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:10,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:10,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584150741] [2022-03-01 17:07:10,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584150741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:10,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:10,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:10,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608615226] [2022-03-01 17:07:10,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:10,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:10,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:10,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:10,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:10,392 INFO L87 Difference]: Start difference. First operand 2976 states and 12439 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:10,444 INFO L93 Difference]: Finished difference Result 2238 states and 9226 transitions. [2022-03-01 17:07:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:10,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:10,456 INFO L225 Difference]: With dead ends: 2238 [2022-03-01 17:07:10,456 INFO L226 Difference]: Without dead ends: 2238 [2022-03-01 17:07:10,459 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 [2022-03-01 17:07:10,462 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 36 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:10,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 29 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-03-01 17:07:10,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238. [2022-03-01 17:07:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 2237 states have (on average 4.124273580688422) internal successors, (9226), 2237 states have internal predecessors, (9226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 9226 transitions. [2022-03-01 17:07:10,510 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 9226 transitions. Word has length 25 [2022-03-01 17:07:10,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:10,511 INFO L470 AbstractCegarLoop]: Abstraction has 2238 states and 9226 transitions. [2022-03-01 17:07:10,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 9226 transitions. [2022-03-01 17:07:10,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:10,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:10,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:10,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 17:07:10,517 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:10,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:10,517 INFO L85 PathProgramCache]: Analyzing trace with hash 296100981, now seen corresponding path program 1 times [2022-03-01 17:07:10,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:10,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396649942] [2022-03-01 17:07:10,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:10,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:10,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:10,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396649942] [2022-03-01 17:07:10,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396649942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:10,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:10,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:10,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441233063] [2022-03-01 17:07:10,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:10,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:10,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:10,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:10,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:10,563 INFO L87 Difference]: Start difference. First operand 2238 states and 9226 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:10,593 INFO L93 Difference]: Finished difference Result 1701 states and 6967 transitions. [2022-03-01 17:07:10,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:10,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:10,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:10,602 INFO L225 Difference]: With dead ends: 1701 [2022-03-01 17:07:10,602 INFO L226 Difference]: Without dead ends: 1701 [2022-03-01 17:07:10,602 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 [2022-03-01 17:07:10,604 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:10,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 33 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2022-03-01 17:07:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2022-03-01 17:07:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 4.098235294117647) internal successors, (6967), 1700 states have internal predecessors, (6967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 6967 transitions. [2022-03-01 17:07:10,657 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 6967 transitions. Word has length 25 [2022-03-01 17:07:10,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:10,658 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 6967 transitions. [2022-03-01 17:07:10,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 6967 transitions. [2022-03-01 17:07:10,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:10,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:10,663 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] [2022-03-01 17:07:10,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 17:07:10,663 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash -540031151, now seen corresponding path program 1 times [2022-03-01 17:07:10,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:10,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284667048] [2022-03-01 17:07:10,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:10,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:10,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:10,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284667048] [2022-03-01 17:07:10,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284667048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:10,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:10,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 17:07:10,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984146989] [2022-03-01 17:07:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:10,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 17:07:10,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:10,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 17:07:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 17:07:10,684 INFO L87 Difference]: Start difference. First operand 1701 states and 6967 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:10,702 INFO L93 Difference]: Finished difference Result 1458 states and 5833 transitions. [2022-03-01 17:07:10,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 17:07:10,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:10,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:10,709 INFO L225 Difference]: With dead ends: 1458 [2022-03-01 17:07:10,709 INFO L226 Difference]: Without dead ends: 1458 [2022-03-01 17:07:10,709 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 [2022-03-01 17:07:10,710 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:10,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 17 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:10,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2022-03-01 17:07:10,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2022-03-01 17:07:10,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 4.003431708991077) internal successors, (5833), 1457 states have internal predecessors, (5833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5833 transitions. [2022-03-01 17:07:10,739 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5833 transitions. Word has length 25 [2022-03-01 17:07:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:10,740 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5833 transitions. [2022-03-01 17:07:10,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:10,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5833 transitions. [2022-03-01 17:07:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:10,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:10,743 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] [2022-03-01 17:07:10,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 17:07:10,743 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:10,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:10,743 INFO L85 PathProgramCache]: Analyzing trace with hash 377713333, now seen corresponding path program 1 times [2022-03-01 17:07:10,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:10,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757740238] [2022-03-01 17:07:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:11,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:11,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:11,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757740238] [2022-03-01 17:07:11,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757740238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:11,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:11,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:11,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722784933] [2022-03-01 17:07:11,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:11,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:11,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:11,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:11,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:11,104 INFO L87 Difference]: Start difference. First operand 1458 states and 5833 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:11,282 INFO L93 Difference]: Finished difference Result 3167 states and 11759 transitions. [2022-03-01 17:07:11,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:11,282 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:11,294 INFO L225 Difference]: With dead ends: 3167 [2022-03-01 17:07:11,294 INFO L226 Difference]: Without dead ends: 3008 [2022-03-01 17:07:11,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:11,295 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:11,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 172 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:11,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-03-01 17:07:11,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1530. [2022-03-01 17:07:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1529 states have (on average 3.998037933289732) internal successors, (6113), 1529 states have internal predecessors, (6113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:11,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 6113 transitions. [2022-03-01 17:07:11,345 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 6113 transitions. Word has length 25 [2022-03-01 17:07:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:11,346 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 6113 transitions. [2022-03-01 17:07:11,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:11,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 6113 transitions. [2022-03-01 17:07:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:11,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:11,349 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] [2022-03-01 17:07:11,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 17:07:11,350 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:11,350 INFO L85 PathProgramCache]: Analyzing trace with hash -630584651, now seen corresponding path program 2 times [2022-03-01 17:07:11,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:11,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815989267] [2022-03-01 17:07:11,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:11,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:11,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:11,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815989267] [2022-03-01 17:07:11,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815989267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:11,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:11,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:11,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783332351] [2022-03-01 17:07:11,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:11,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:11,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:11,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:11,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:11,538 INFO L87 Difference]: Start difference. First operand 1530 states and 6113 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:11,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:11,706 INFO L93 Difference]: Finished difference Result 3230 states and 11966 transitions. [2022-03-01 17:07:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:11,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:11,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:11,718 INFO L225 Difference]: With dead ends: 3230 [2022-03-01 17:07:11,718 INFO L226 Difference]: Without dead ends: 2976 [2022-03-01 17:07:11,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:11,721 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 122 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:11,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 143 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2022-03-01 17:07:11,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1498. [2022-03-01 17:07:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.997995991983968) internal successors, (5985), 1497 states have internal predecessors, (5985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5985 transitions. [2022-03-01 17:07:11,762 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5985 transitions. Word has length 25 [2022-03-01 17:07:11,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:11,762 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5985 transitions. [2022-03-01 17:07:11,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:11,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5985 transitions. [2022-03-01 17:07:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:11,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:11,765 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] [2022-03-01 17:07:11,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 17:07:11,766 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:11,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:11,766 INFO L85 PathProgramCache]: Analyzing trace with hash 416328017, now seen corresponding path program 3 times [2022-03-01 17:07:11,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:11,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770136409] [2022-03-01 17:07:11,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:11,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:11,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:11,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770136409] [2022-03-01 17:07:11,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770136409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:11,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:11,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:11,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411917956] [2022-03-01 17:07:11,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:11,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:11,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:11,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:11,920 INFO L87 Difference]: Start difference. First operand 1498 states and 5985 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:12,071 INFO L93 Difference]: Finished difference Result 3118 states and 11565 transitions. [2022-03-01 17:07:12,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:12,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:12,080 INFO L225 Difference]: With dead ends: 3118 [2022-03-01 17:07:12,081 INFO L226 Difference]: Without dead ends: 2959 [2022-03-01 17:07:12,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:12,081 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 101 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:12,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 163 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:12,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-03-01 17:07:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 1514. [2022-03-01 17:07:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.9874421678783873) internal successors, (6033), 1513 states have internal predecessors, (6033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6033 transitions. [2022-03-01 17:07:12,134 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6033 transitions. Word has length 25 [2022-03-01 17:07:12,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:12,134 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6033 transitions. [2022-03-01 17:07:12,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6033 transitions. [2022-03-01 17:07:12,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:12,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:12,138 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] [2022-03-01 17:07:12,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 17:07:12,144 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1173606733, now seen corresponding path program 4 times [2022-03-01 17:07:12,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:12,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776586409] [2022-03-01 17:07:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:12,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:12,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:12,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776586409] [2022-03-01 17:07:12,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776586409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:12,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:12,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:12,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389089315] [2022-03-01 17:07:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:12,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:12,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:12,324 INFO L87 Difference]: Start difference. First operand 1514 states and 6033 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:12,474 INFO L93 Difference]: Finished difference Result 3148 states and 11658 transitions. [2022-03-01 17:07:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:12,484 INFO L225 Difference]: With dead ends: 3148 [2022-03-01 17:07:12,484 INFO L226 Difference]: Without dead ends: 2943 [2022-03-01 17:07:12,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:12,485 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:12,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 164 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:12,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2022-03-01 17:07:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 1498. [2022-03-01 17:07:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9926519706078825) internal successors, (5977), 1497 states have internal predecessors, (5977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5977 transitions. [2022-03-01 17:07:12,529 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5977 transitions. Word has length 25 [2022-03-01 17:07:12,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:12,529 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5977 transitions. [2022-03-01 17:07:12,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5977 transitions. [2022-03-01 17:07:12,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:12,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:12,532 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] [2022-03-01 17:07:12,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 17:07:12,532 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:12,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:12,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1811770219, now seen corresponding path program 5 times [2022-03-01 17:07:12,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:12,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033971264] [2022-03-01 17:07:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:12,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:12,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:12,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033971264] [2022-03-01 17:07:12,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033971264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:12,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:12,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:12,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301237147] [2022-03-01 17:07:12,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:12,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:12,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:12,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:12,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:12,693 INFO L87 Difference]: Start difference. First operand 1498 states and 5977 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:12,832 INFO L93 Difference]: Finished difference Result 3258 states and 12063 transitions. [2022-03-01 17:07:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:12,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:12,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:12,841 INFO L225 Difference]: With dead ends: 3258 [2022-03-01 17:07:12,841 INFO L226 Difference]: Without dead ends: 3069 [2022-03-01 17:07:12,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:12,842 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:12,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 151 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:12,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2022-03-01 17:07:12,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 1561. [2022-03-01 17:07:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1560 states have (on average 3.9641025641025642) internal successors, (6184), 1560 states have internal predecessors, (6184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 6184 transitions. [2022-03-01 17:07:12,886 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 6184 transitions. Word has length 25 [2022-03-01 17:07:12,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:12,886 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 6184 transitions. [2022-03-01 17:07:12,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 6184 transitions. [2022-03-01 17:07:12,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:12,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:12,890 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] [2022-03-01 17:07:12,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 17:07:12,890 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:12,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:12,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1513717261, now seen corresponding path program 6 times [2022-03-01 17:07:12,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:12,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425131743] [2022-03-01 17:07:12,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:12,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:13,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:13,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425131743] [2022-03-01 17:07:13,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425131743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:13,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:13,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:13,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505425082] [2022-03-01 17:07:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:13,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:13,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:13,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:13,056 INFO L87 Difference]: Start difference. First operand 1561 states and 6184 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:13,177 INFO L93 Difference]: Finished difference Result 3291 states and 12146 transitions. [2022-03-01 17:07:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:13,185 INFO L225 Difference]: With dead ends: 3291 [2022-03-01 17:07:13,185 INFO L226 Difference]: Without dead ends: 2982 [2022-03-01 17:07:13,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:13,186 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 122 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:13,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 138 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-03-01 17:07:13,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1474. [2022-03-01 17:07:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9979633401221997) internal successors, (5889), 1473 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5889 transitions. [2022-03-01 17:07:13,222 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5889 transitions. Word has length 25 [2022-03-01 17:07:13,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:13,222 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5889 transitions. [2022-03-01 17:07:13,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5889 transitions. [2022-03-01 17:07:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:13,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:13,227 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] [2022-03-01 17:07:13,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 17:07:13,227 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:13,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:13,228 INFO L85 PathProgramCache]: Analyzing trace with hash 2045589173, now seen corresponding path program 7 times [2022-03-01 17:07:13,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:13,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517842877] [2022-03-01 17:07:13,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:13,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:13,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:13,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517842877] [2022-03-01 17:07:13,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517842877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:13,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:13,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:13,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091820644] [2022-03-01 17:07:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:13,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:13,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:13,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:13,371 INFO L87 Difference]: Start difference. First operand 1474 states and 5889 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:13,485 INFO L93 Difference]: Finished difference Result 3140 states and 11663 transitions. [2022-03-01 17:07:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:13,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:13,493 INFO L225 Difference]: With dead ends: 3140 [2022-03-01 17:07:13,493 INFO L226 Difference]: Without dead ends: 2981 [2022-03-01 17:07:13,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:13,494 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 110 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:13,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 148 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:13,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2022-03-01 17:07:13,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1522. [2022-03-01 17:07:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1521 states have (on average 3.992767915844839) internal successors, (6073), 1521 states have internal predecessors, (6073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 6073 transitions. [2022-03-01 17:07:13,529 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 6073 transitions. Word has length 25 [2022-03-01 17:07:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:13,529 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 6073 transitions. [2022-03-01 17:07:13,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 6073 transitions. [2022-03-01 17:07:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:13,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:13,533 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] [2022-03-01 17:07:13,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 17:07:13,533 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:13,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1037291189, now seen corresponding path program 8 times [2022-03-01 17:07:13,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:13,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985997962] [2022-03-01 17:07:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:13,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:13,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:13,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985997962] [2022-03-01 17:07:13,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985997962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:13,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:13,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:13,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398963016] [2022-03-01 17:07:13,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:13,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:13,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:13,669 INFO L87 Difference]: Start difference. First operand 1522 states and 6073 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:13,803 INFO L93 Difference]: Finished difference Result 3203 states and 11870 transitions. [2022-03-01 17:07:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:13,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:13,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:13,813 INFO L225 Difference]: With dead ends: 3203 [2022-03-01 17:07:13,813 INFO L226 Difference]: Without dead ends: 2949 [2022-03-01 17:07:13,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:13,815 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 94 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 185 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 [2022-03-01 17:07:13,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 185 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2022-03-01 17:07:13,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1490. [2022-03-01 17:07:13,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.992612491605104) internal successors, (5945), 1489 states have internal predecessors, (5945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5945 transitions. [2022-03-01 17:07:13,861 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5945 transitions. Word has length 25 [2022-03-01 17:07:13,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:13,861 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5945 transitions. [2022-03-01 17:07:13,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5945 transitions. [2022-03-01 17:07:13,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:13,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:13,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:13,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 17:07:13,865 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:13,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1260344617, now seen corresponding path program 9 times [2022-03-01 17:07:13,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:13,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476785179] [2022-03-01 17:07:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:13,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:14,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:14,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:14,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476785179] [2022-03-01 17:07:14,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476785179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:14,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:14,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:14,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101759479] [2022-03-01 17:07:14,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:14,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:14,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:14,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:14,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:14,005 INFO L87 Difference]: Start difference. First operand 1490 states and 5945 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:14,128 INFO L93 Difference]: Finished difference Result 3089 states and 11464 transitions. [2022-03-01 17:07:14,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:14,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:14,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:14,136 INFO L225 Difference]: With dead ends: 3089 [2022-03-01 17:07:14,136 INFO L226 Difference]: Without dead ends: 2930 [2022-03-01 17:07:14,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:14,137 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 102 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:14,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 165 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-01 17:07:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1506. [2022-03-01 17:07:14,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.9820598006644516) internal successors, (5993), 1505 states have internal predecessors, (5993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5993 transitions. [2022-03-01 17:07:14,190 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5993 transitions. Word has length 25 [2022-03-01 17:07:14,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:14,191 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5993 transitions. [2022-03-01 17:07:14,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5993 transitions. [2022-03-01 17:07:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:14,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:14,194 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] [2022-03-01 17:07:14,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 17:07:14,194 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash -252046633, now seen corresponding path program 10 times [2022-03-01 17:07:14,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:14,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267050380] [2022-03-01 17:07:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:14,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:14,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:14,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267050380] [2022-03-01 17:07:14,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267050380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:14,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:14,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:14,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964767718] [2022-03-01 17:07:14,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:14,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:14,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:14,318 INFO L87 Difference]: Start difference. First operand 1506 states and 5993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:14,449 INFO L93 Difference]: Finished difference Result 3117 states and 11552 transitions. [2022-03-01 17:07:14,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:14,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:14,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:14,456 INFO L225 Difference]: With dead ends: 3117 [2022-03-01 17:07:14,456 INFO L226 Difference]: Without dead ends: 2914 [2022-03-01 17:07:14,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:14,457 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:14,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 156 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:14,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2022-03-01 17:07:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 1490. [2022-03-01 17:07:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.987239758226998) internal successors, (5937), 1489 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5937 transitions. [2022-03-01 17:07:14,487 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5937 transitions. Word has length 25 [2022-03-01 17:07:14,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:14,488 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5937 transitions. [2022-03-01 17:07:14,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5937 transitions. [2022-03-01 17:07:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:14,490 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:14,490 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] [2022-03-01 17:07:14,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 17:07:14,491 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:14,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1436199639, now seen corresponding path program 11 times [2022-03-01 17:07:14,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:14,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077320928] [2022-03-01 17:07:14,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:14,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:14,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:14,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077320928] [2022-03-01 17:07:14,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077320928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:14,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:14,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:14,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439913278] [2022-03-01 17:07:14,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:14,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:14,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:14,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:14,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:14,614 INFO L87 Difference]: Start difference. First operand 1490 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:14,743 INFO L93 Difference]: Finished difference Result 3210 states and 11906 transitions. [2022-03-01 17:07:14,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:14,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:14,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:14,750 INFO L225 Difference]: With dead ends: 3210 [2022-03-01 17:07:14,751 INFO L226 Difference]: Without dead ends: 3023 [2022-03-01 17:07:14,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:14,751 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:14,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 151 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2022-03-01 17:07:14,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1536. [2022-03-01 17:07:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1535 states have (on average 3.9700325732899024) internal successors, (6094), 1535 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 6094 transitions. [2022-03-01 17:07:14,785 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 6094 transitions. Word has length 25 [2022-03-01 17:07:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:14,785 INFO L470 AbstractCegarLoop]: Abstraction has 1536 states and 6094 transitions. [2022-03-01 17:07:14,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:14,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 6094 transitions. [2022-03-01 17:07:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:14,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:14,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:14,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 17:07:14,788 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1083060149, now seen corresponding path program 12 times [2022-03-01 17:07:14,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:14,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915903896] [2022-03-01 17:07:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:14,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:14,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:14,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915903896] [2022-03-01 17:07:14,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915903896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:14,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:14,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:14,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378071935] [2022-03-01 17:07:14,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:14,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:14,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:14,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:14,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:14,962 INFO L87 Difference]: Start difference. First operand 1536 states and 6094 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:15,206 INFO L93 Difference]: Finished difference Result 3245 states and 11995 transitions. [2022-03-01 17:07:15,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:15,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:15,213 INFO L225 Difference]: With dead ends: 3245 [2022-03-01 17:07:15,214 INFO L226 Difference]: Without dead ends: 2961 [2022-03-01 17:07:15,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:15,214 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:15,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:07:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-03-01 17:07:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1474. [2022-03-01 17:07:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.992532247114732) internal successors, (5881), 1473 states have internal predecessors, (5881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5881 transitions. [2022-03-01 17:07:15,283 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5881 transitions. Word has length 25 [2022-03-01 17:07:15,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:15,283 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5881 transitions. [2022-03-01 17:07:15,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5881 transitions. [2022-03-01 17:07:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:15,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:15,286 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] [2022-03-01 17:07:15,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 17:07:15,286 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:15,287 INFO L85 PathProgramCache]: Analyzing trace with hash 407565713, now seen corresponding path program 13 times [2022-03-01 17:07:15,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:15,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082281973] [2022-03-01 17:07:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:15,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:15,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082281973] [2022-03-01 17:07:15,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082281973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:15,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:15,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:15,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294914518] [2022-03-01 17:07:15,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:15,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:15,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:15,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:15,443 INFO L87 Difference]: Start difference. First operand 1474 states and 5881 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:15,557 INFO L93 Difference]: Finished difference Result 3018 states and 11199 transitions. [2022-03-01 17:07:15,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:15,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:15,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:15,564 INFO L225 Difference]: With dead ends: 3018 [2022-03-01 17:07:15,564 INFO L226 Difference]: Without dead ends: 2859 [2022-03-01 17:07:15,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:15,565 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 108 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:15,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 153 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2859 states. [2022-03-01 17:07:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2859 to 1498. [2022-03-01 17:07:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.984635938543754) internal successors, (5965), 1497 states have internal predecessors, (5965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5965 transitions. [2022-03-01 17:07:15,623 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5965 transitions. Word has length 25 [2022-03-01 17:07:15,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:15,623 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5965 transitions. [2022-03-01 17:07:15,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5965 transitions. [2022-03-01 17:07:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:15,626 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:15,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:15,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 17:07:15,626 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:15,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:15,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1182369037, now seen corresponding path program 14 times [2022-03-01 17:07:15,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:15,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469495226] [2022-03-01 17:07:15,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:15,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:15,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:15,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469495226] [2022-03-01 17:07:15,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469495226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:15,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:15,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:15,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651998109] [2022-03-01 17:07:15,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:15,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:15,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:15,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:15,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:15,745 INFO L87 Difference]: Start difference. First operand 1498 states and 5965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:15,881 INFO L93 Difference]: Finished difference Result 3048 states and 11292 transitions. [2022-03-01 17:07:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:15,888 INFO L225 Difference]: With dead ends: 3048 [2022-03-01 17:07:15,888 INFO L226 Difference]: Without dead ends: 2843 [2022-03-01 17:07:15,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:15,889 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:15,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 161 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2022-03-01 17:07:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 1482. [2022-03-01 17:07:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9898717083051993) internal successors, (5909), 1481 states have internal predecessors, (5909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5909 transitions. [2022-03-01 17:07:15,925 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5909 transitions. Word has length 25 [2022-03-01 17:07:15,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:15,925 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5909 transitions. [2022-03-01 17:07:15,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5909 transitions. [2022-03-01 17:07:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:15,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:15,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:15,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 17:07:15,928 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:15,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1488628339, now seen corresponding path program 15 times [2022-03-01 17:07:15,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:15,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637189662] [2022-03-01 17:07:15,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:15,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:16,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:16,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637189662] [2022-03-01 17:07:16,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637189662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:16,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:16,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:16,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723073461] [2022-03-01 17:07:16,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:16,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:16,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:16,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:16,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:16,081 INFO L87 Difference]: Start difference. First operand 1482 states and 5909 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:16,197 INFO L93 Difference]: Finished difference Result 3016 states and 11186 transitions. [2022-03-01 17:07:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:16,197 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:16,205 INFO L225 Difference]: With dead ends: 3016 [2022-03-01 17:07:16,205 INFO L226 Difference]: Without dead ends: 2857 [2022-03-01 17:07:16,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:16,206 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:16,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 155 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:16,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2022-03-01 17:07:16,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1498. [2022-03-01 17:07:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.979291917167669) internal successors, (5957), 1497 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5957 transitions. [2022-03-01 17:07:16,251 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5957 transitions. Word has length 25 [2022-03-01 17:07:16,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:16,252 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5957 transitions. [2022-03-01 17:07:16,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5957 transitions. [2022-03-01 17:07:16,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:16,256 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:16,256 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] [2022-03-01 17:07:16,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 17:07:16,256 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:16,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1798040973, now seen corresponding path program 16 times [2022-03-01 17:07:16,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:16,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774523323] [2022-03-01 17:07:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:16,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:16,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:16,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:16,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774523323] [2022-03-01 17:07:16,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774523323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:16,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:16,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:16,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122544027] [2022-03-01 17:07:16,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:16,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:16,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:16,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:16,382 INFO L87 Difference]: Start difference. First operand 1498 states and 5957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:16,517 INFO L93 Difference]: Finished difference Result 3044 states and 11274 transitions. [2022-03-01 17:07:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:16,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:16,524 INFO L225 Difference]: With dead ends: 3044 [2022-03-01 17:07:16,525 INFO L226 Difference]: Without dead ends: 2841 [2022-03-01 17:07:16,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:16,525 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:16,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 143 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2022-03-01 17:07:16,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1482. [2022-03-01 17:07:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9844699527346386) internal successors, (5901), 1481 states have internal predecessors, (5901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5901 transitions. [2022-03-01 17:07:16,561 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5901 transitions. Word has length 25 [2022-03-01 17:07:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:16,561 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5901 transitions. [2022-03-01 17:07:16,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5901 transitions. [2022-03-01 17:07:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:16,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:16,564 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] [2022-03-01 17:07:16,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 17:07:16,564 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:16,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1389177003, now seen corresponding path program 17 times [2022-03-01 17:07:16,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:16,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799995835] [2022-03-01 17:07:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:16,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:16,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:16,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799995835] [2022-03-01 17:07:16,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799995835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:16,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:16,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:16,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040908992] [2022-03-01 17:07:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:16,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:16,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:16,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:16,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:16,724 INFO L87 Difference]: Start difference. First operand 1482 states and 5901 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:16,887 INFO L93 Difference]: Finished difference Result 3090 states and 11455 transitions. [2022-03-01 17:07:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:16,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:16,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:16,895 INFO L225 Difference]: With dead ends: 3090 [2022-03-01 17:07:16,895 INFO L226 Difference]: Without dead ends: 2901 [2022-03-01 17:07:16,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:16,896 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:16,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 169 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:16,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-03-01 17:07:16,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1512. [2022-03-01 17:07:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1511 states have (on average 3.966909331568498) internal successors, (5994), 1511 states have internal predecessors, (5994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 5994 transitions. [2022-03-01 17:07:16,947 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 5994 transitions. Word has length 25 [2022-03-01 17:07:16,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:16,947 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 5994 transitions. [2022-03-01 17:07:16,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 5994 transitions. [2022-03-01 17:07:16,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:16,950 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:16,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:16,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 17:07:16,950 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:16,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:16,961 INFO L85 PathProgramCache]: Analyzing trace with hash 862453299, now seen corresponding path program 18 times [2022-03-01 17:07:16,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:16,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759794048] [2022-03-01 17:07:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:16,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:17,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:17,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759794048] [2022-03-01 17:07:17,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759794048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:17,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:17,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:17,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346973158] [2022-03-01 17:07:17,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:17,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:17,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:17,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:17,096 INFO L87 Difference]: Start difference. First operand 1512 states and 5994 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:17,222 INFO L93 Difference]: Finished difference Result 3088 states and 11420 transitions. [2022-03-01 17:07:17,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:17,228 INFO L225 Difference]: With dead ends: 3088 [2022-03-01 17:07:17,228 INFO L226 Difference]: Without dead ends: 2863 [2022-03-01 17:07:17,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:17,230 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:17,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 155 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2022-03-01 17:07:17,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1474. [2022-03-01 17:07:17,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.989816700610998) internal successors, (5877), 1473 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5877 transitions. [2022-03-01 17:07:17,259 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5877 transitions. Word has length 25 [2022-03-01 17:07:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:17,260 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5877 transitions. [2022-03-01 17:07:17,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5877 transitions. [2022-03-01 17:07:17,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:17,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:17,262 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] [2022-03-01 17:07:17,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 17:07:17,262 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:17,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:17,263 INFO L85 PathProgramCache]: Analyzing trace with hash -483963721, now seen corresponding path program 19 times [2022-03-01 17:07:17,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:17,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397120896] [2022-03-01 17:07:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:17,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:17,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:17,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397120896] [2022-03-01 17:07:17,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397120896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:17,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:17,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:17,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217520470] [2022-03-01 17:07:17,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:17,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:17,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:17,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:17,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:17,406 INFO L87 Difference]: Start difference. First operand 1474 states and 5877 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:17,556 INFO L93 Difference]: Finished difference Result 3261 states and 12104 transitions. [2022-03-01 17:07:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:17,563 INFO L225 Difference]: With dead ends: 3261 [2022-03-01 17:07:17,564 INFO L226 Difference]: Without dead ends: 3072 [2022-03-01 17:07:17,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:17,565 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:17,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 179 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2022-03-01 17:07:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 1543. [2022-03-01 17:07:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1542 states have (on average 3.970817120622568) internal successors, (6123), 1542 states have internal predecessors, (6123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 6123 transitions. [2022-03-01 17:07:17,596 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 6123 transitions. Word has length 25 [2022-03-01 17:07:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:17,596 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 6123 transitions. [2022-03-01 17:07:17,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 6123 transitions. [2022-03-01 17:07:17,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:17,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:17,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:17,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 17:07:17,600 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1767666581, now seen corresponding path program 20 times [2022-03-01 17:07:17,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:17,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054075433] [2022-03-01 17:07:17,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:17,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:17,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:17,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054075433] [2022-03-01 17:07:17,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054075433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:17,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:17,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:17,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850916831] [2022-03-01 17:07:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:17,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:17,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:17,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:17,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:17,732 INFO L87 Difference]: Start difference. First operand 1543 states and 6123 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:17,860 INFO L93 Difference]: Finished difference Result 3259 states and 12069 transitions. [2022-03-01 17:07:17,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:17,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:17,867 INFO L225 Difference]: With dead ends: 3259 [2022-03-01 17:07:17,867 INFO L226 Difference]: Without dead ends: 3042 [2022-03-01 17:07:17,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:17,868 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:17,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 153 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2022-03-01 17:07:17,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 1513. [2022-03-01 17:07:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.9781746031746033) internal successors, (6015), 1512 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 6015 transitions. [2022-03-01 17:07:17,900 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 6015 transitions. Word has length 25 [2022-03-01 17:07:17,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:17,900 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 6015 transitions. [2022-03-01 17:07:17,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:17,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 6015 transitions. [2022-03-01 17:07:17,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:17,903 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:17,903 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] [2022-03-01 17:07:17,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 17:07:17,903 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:17,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash -548597227, now seen corresponding path program 21 times [2022-03-01 17:07:17,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:17,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796512987] [2022-03-01 17:07:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:18,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:18,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796512987] [2022-03-01 17:07:18,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796512987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:18,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:18,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:18,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665862317] [2022-03-01 17:07:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:18,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:18,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:18,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:18,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:18,034 INFO L87 Difference]: Start difference. First operand 1513 states and 6015 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:18,153 INFO L93 Difference]: Finished difference Result 3329 states and 12323 transitions. [2022-03-01 17:07:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:18,162 INFO L225 Difference]: With dead ends: 3329 [2022-03-01 17:07:18,162 INFO L226 Difference]: Without dead ends: 3140 [2022-03-01 17:07:18,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:18,163 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 139 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:18,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 129 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:18,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2022-03-01 17:07:18,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 1576. [2022-03-01 17:07:18,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 3.9504761904761905) internal successors, (6222), 1575 states have internal predecessors, (6222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 6222 transitions. [2022-03-01 17:07:18,199 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 6222 transitions. Word has length 25 [2022-03-01 17:07:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:18,199 INFO L470 AbstractCegarLoop]: Abstraction has 1576 states and 6222 transitions. [2022-03-01 17:07:18,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 6222 transitions. [2022-03-01 17:07:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:18,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:18,202 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] [2022-03-01 17:07:18,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 17:07:18,203 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:18,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:18,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1104385515, now seen corresponding path program 22 times [2022-03-01 17:07:18,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:18,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889704028] [2022-03-01 17:07:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:18,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:18,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889704028] [2022-03-01 17:07:18,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889704028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:18,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:18,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:18,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201697617] [2022-03-01 17:07:18,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:18,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:18,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:18,326 INFO L87 Difference]: Start difference. First operand 1576 states and 6222 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:18,449 INFO L93 Difference]: Finished difference Result 3362 states and 12406 transitions. [2022-03-01 17:07:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:18,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:18,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:18,457 INFO L225 Difference]: With dead ends: 3362 [2022-03-01 17:07:18,457 INFO L226 Difference]: Without dead ends: 3077 [2022-03-01 17:07:18,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:18,458 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 107 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:18,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 158 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:18,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-03-01 17:07:18,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1513. [2022-03-01 17:07:18,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1512 states have (on average 3.9576719576719577) internal successors, (5984), 1512 states have internal predecessors, (5984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 5984 transitions. [2022-03-01 17:07:18,489 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 5984 transitions. Word has length 25 [2022-03-01 17:07:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:18,489 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 5984 transitions. [2022-03-01 17:07:18,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 5984 transitions. [2022-03-01 17:07:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:18,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:18,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:18,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 17:07:18,492 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:18,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash 433750387, now seen corresponding path program 23 times [2022-03-01 17:07:18,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:18,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128152301] [2022-03-01 17:07:18,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:18,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:18,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:18,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128152301] [2022-03-01 17:07:18,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128152301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:18,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:18,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:18,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569700036] [2022-03-01 17:07:18,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:18,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:18,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:18,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:18,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:18,608 INFO L87 Difference]: Start difference. First operand 1513 states and 5984 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:18,730 INFO L93 Difference]: Finished difference Result 3308 states and 12231 transitions. [2022-03-01 17:07:18,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:18,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:18,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:18,738 INFO L225 Difference]: With dead ends: 3308 [2022-03-01 17:07:18,738 INFO L226 Difference]: Without dead ends: 3121 [2022-03-01 17:07:18,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:18,738 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 116 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:18,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:18,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-03-01 17:07:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1559. [2022-03-01 17:07:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1559 states, 1558 states have (on average 3.941591784338896) internal successors, (6141), 1558 states have internal predecessors, (6141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1559 states to 1559 states and 6141 transitions. [2022-03-01 17:07:18,770 INFO L78 Accepts]: Start accepts. Automaton has 1559 states and 6141 transitions. Word has length 25 [2022-03-01 17:07:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:18,770 INFO L470 AbstractCegarLoop]: Abstraction has 1559 states and 6141 transitions. [2022-03-01 17:07:18,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 6141 transitions. [2022-03-01 17:07:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:18,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:18,773 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] [2022-03-01 17:07:18,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 17:07:18,773 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:18,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:18,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1923639211, now seen corresponding path program 24 times [2022-03-01 17:07:18,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:18,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359128848] [2022-03-01 17:07:18,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:18,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:18,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:18,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359128848] [2022-03-01 17:07:18,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359128848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:18,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:18,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:18,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813211430] [2022-03-01 17:07:18,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:18,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:18,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:18,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:18,889 INFO L87 Difference]: Start difference. First operand 1559 states and 6141 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:19,029 INFO L93 Difference]: Finished difference Result 3343 states and 12320 transitions. [2022-03-01 17:07:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:19,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:19,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:19,036 INFO L225 Difference]: With dead ends: 3343 [2022-03-01 17:07:19,036 INFO L226 Difference]: Without dead ends: 3020 [2022-03-01 17:07:19,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:19,037 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:19,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 154 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2022-03-01 17:07:19,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 1458. [2022-03-01 17:07:19,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9979409746053536) internal successors, (5825), 1457 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5825 transitions. [2022-03-01 17:07:19,103 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5825 transitions. Word has length 25 [2022-03-01 17:07:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:19,103 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5825 transitions. [2022-03-01 17:07:19,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5825 transitions. [2022-03-01 17:07:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:19,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:19,106 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] [2022-03-01 17:07:19,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 17:07:19,106 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:19,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash -409784651, now seen corresponding path program 25 times [2022-03-01 17:07:19,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:19,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166950076] [2022-03-01 17:07:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:19,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:19,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166950076] [2022-03-01 17:07:19,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166950076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:19,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:19,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:19,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766416004] [2022-03-01 17:07:19,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:19,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:19,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:19,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:19,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:19,229 INFO L87 Difference]: Start difference. First operand 1458 states and 5825 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:19,343 INFO L93 Difference]: Finished difference Result 3146 states and 11689 transitions. [2022-03-01 17:07:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:19,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:19,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:19,350 INFO L225 Difference]: With dead ends: 3146 [2022-03-01 17:07:19,350 INFO L226 Difference]: Without dead ends: 2987 [2022-03-01 17:07:19,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:19,351 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:19,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 160 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2022-03-01 17:07:19,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1526. [2022-03-01 17:07:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 3.9954098360655736) internal successors, (6093), 1525 states have internal predecessors, (6093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6093 transitions. [2022-03-01 17:07:19,383 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6093 transitions. Word has length 25 [2022-03-01 17:07:19,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:19,383 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 6093 transitions. [2022-03-01 17:07:19,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6093 transitions. [2022-03-01 17:07:19,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:19,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:19,386 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] [2022-03-01 17:07:19,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 17:07:19,386 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:19,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:19,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1418082635, now seen corresponding path program 26 times [2022-03-01 17:07:19,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:19,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450571561] [2022-03-01 17:07:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:19,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:19,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:19,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450571561] [2022-03-01 17:07:19,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450571561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:19,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:19,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:19,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040695192] [2022-03-01 17:07:19,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:19,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:19,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:19,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:19,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:19,568 INFO L87 Difference]: Start difference. First operand 1526 states and 6093 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:19,678 INFO L93 Difference]: Finished difference Result 3209 states and 11896 transitions. [2022-03-01 17:07:19,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:19,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:19,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:19,686 INFO L225 Difference]: With dead ends: 3209 [2022-03-01 17:07:19,686 INFO L226 Difference]: Without dead ends: 2955 [2022-03-01 17:07:19,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:19,687 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:19,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 146 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2022-03-01 17:07:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1494. [2022-03-01 17:07:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.9953114534494305) internal successors, (5965), 1493 states have internal predecessors, (5965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5965 transitions. [2022-03-01 17:07:19,721 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5965 transitions. Word has length 25 [2022-03-01 17:07:19,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:19,721 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5965 transitions. [2022-03-01 17:07:19,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5965 transitions. [2022-03-01 17:07:19,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:19,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:19,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:19,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 17:07:19,724 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:19,725 INFO L85 PathProgramCache]: Analyzing trace with hash -371169967, now seen corresponding path program 27 times [2022-03-01 17:07:19,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:19,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344241818] [2022-03-01 17:07:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:19,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:19,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:19,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344241818] [2022-03-01 17:07:19,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344241818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:19,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:19,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:19,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112521734] [2022-03-01 17:07:19,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:19,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:19,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:19,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:19,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:19,856 INFO L87 Difference]: Start difference. First operand 1494 states and 5965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:19,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:19,962 INFO L93 Difference]: Finished difference Result 3097 states and 11495 transitions. [2022-03-01 17:07:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:19,970 INFO L225 Difference]: With dead ends: 3097 [2022-03-01 17:07:19,970 INFO L226 Difference]: Without dead ends: 2938 [2022-03-01 17:07:19,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:19,971 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 123 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:19,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 138 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:19,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2022-03-01 17:07:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 1510. [2022-03-01 17:07:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.984758117958913) internal successors, (6013), 1509 states have internal predecessors, (6013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 6013 transitions. [2022-03-01 17:07:20,002 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 6013 transitions. Word has length 25 [2022-03-01 17:07:20,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:20,002 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 6013 transitions. [2022-03-01 17:07:20,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 6013 transitions. [2022-03-01 17:07:20,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:20,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:20,006 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] [2022-03-01 17:07:20,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 17:07:20,006 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:20,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:20,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1961104717, now seen corresponding path program 28 times [2022-03-01 17:07:20,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:20,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455077033] [2022-03-01 17:07:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:20,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:20,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:20,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455077033] [2022-03-01 17:07:20,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455077033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:20,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:20,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:20,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588005529] [2022-03-01 17:07:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:20,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:20,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:20,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:20,121 INFO L87 Difference]: Start difference. First operand 1510 states and 6013 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:20,224 INFO L93 Difference]: Finished difference Result 3127 states and 11588 transitions. [2022-03-01 17:07:20,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:20,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:20,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:20,232 INFO L225 Difference]: With dead ends: 3127 [2022-03-01 17:07:20,233 INFO L226 Difference]: Without dead ends: 2922 [2022-03-01 17:07:20,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:20,233 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:20,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 160 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:20,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-03-01 17:07:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1494. [2022-03-01 17:07:20,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.989953114534494) internal successors, (5957), 1493 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5957 transitions. [2022-03-01 17:07:20,271 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5957 transitions. Word has length 25 [2022-03-01 17:07:20,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:20,271 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5957 transitions. [2022-03-01 17:07:20,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5957 transitions. [2022-03-01 17:07:20,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:20,274 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:20,274 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] [2022-03-01 17:07:20,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 17:07:20,274 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:20,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:20,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1695699093, now seen corresponding path program 29 times [2022-03-01 17:07:20,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:20,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528080553] [2022-03-01 17:07:20,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:20,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:20,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:20,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528080553] [2022-03-01 17:07:20,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528080553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:20,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:20,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:20,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119704722] [2022-03-01 17:07:20,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:20,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:20,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:20,391 INFO L87 Difference]: Start difference. First operand 1494 states and 5957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:20,491 INFO L93 Difference]: Finished difference Result 3237 states and 11993 transitions. [2022-03-01 17:07:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:20,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:20,498 INFO L225 Difference]: With dead ends: 3237 [2022-03-01 17:07:20,498 INFO L226 Difference]: Without dead ends: 3048 [2022-03-01 17:07:20,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:20,499 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:20,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 160 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:20,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2022-03-01 17:07:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 1557. [2022-03-01 17:07:20,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1556 states have (on average 3.961439588688946) internal successors, (6164), 1556 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 6164 transitions. [2022-03-01 17:07:20,535 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 6164 transitions. Word has length 25 [2022-03-01 17:07:20,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:20,536 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 6164 transitions. [2022-03-01 17:07:20,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 6164 transitions. [2022-03-01 17:07:20,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:20,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:20,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:20,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 17:07:20,540 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:20,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:20,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1993752051, now seen corresponding path program 30 times [2022-03-01 17:07:20,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:20,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083809262] [2022-03-01 17:07:20,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:20,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:20,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:20,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083809262] [2022-03-01 17:07:20,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083809262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:20,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:20,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:20,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242811451] [2022-03-01 17:07:20,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:20,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:20,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:20,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:20,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:20,710 INFO L87 Difference]: Start difference. First operand 1557 states and 6164 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:20,833 INFO L93 Difference]: Finished difference Result 3270 states and 12076 transitions. [2022-03-01 17:07:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:20,833 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:20,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:20,840 INFO L225 Difference]: With dead ends: 3270 [2022-03-01 17:07:20,840 INFO L226 Difference]: Without dead ends: 2961 [2022-03-01 17:07:20,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:20,841 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:20,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 151 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2022-03-01 17:07:20,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 1470. [2022-03-01 17:07:20,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.995234853641933) internal successors, (5869), 1469 states have internal predecessors, (5869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5869 transitions. [2022-03-01 17:07:20,870 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5869 transitions. Word has length 25 [2022-03-01 17:07:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:20,871 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5869 transitions. [2022-03-01 17:07:20,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5869 transitions. [2022-03-01 17:07:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:20,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:20,873 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] [2022-03-01 17:07:20,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 17:07:20,874 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:20,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1911164755, now seen corresponding path program 31 times [2022-03-01 17:07:20,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:20,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041564667] [2022-03-01 17:07:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:20,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:21,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:21,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041564667] [2022-03-01 17:07:21,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041564667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:21,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:21,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:21,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349636793] [2022-03-01 17:07:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:21,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:21,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:21,002 INFO L87 Difference]: Start difference. First operand 1470 states and 5869 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:21,112 INFO L93 Difference]: Finished difference Result 3113 states and 11574 transitions. [2022-03-01 17:07:21,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:21,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:21,120 INFO L225 Difference]: With dead ends: 3113 [2022-03-01 17:07:21,121 INFO L226 Difference]: Without dead ends: 2954 [2022-03-01 17:07:21,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:21,121 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:21,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 147 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2022-03-01 17:07:21,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 1518. [2022-03-01 17:07:21,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 3.990112063282795) internal successors, (6053), 1517 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 6053 transitions. [2022-03-01 17:07:21,155 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 6053 transitions. Word has length 25 [2022-03-01 17:07:21,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:21,155 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 6053 transitions. [2022-03-01 17:07:21,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 6053 transitions. [2022-03-01 17:07:21,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:21,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:21,158 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] [2022-03-01 17:07:21,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 17:07:21,158 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:21,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:21,159 INFO L85 PathProgramCache]: Analyzing trace with hash 902866771, now seen corresponding path program 32 times [2022-03-01 17:07:21,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:21,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385311229] [2022-03-01 17:07:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:21,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:21,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:21,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385311229] [2022-03-01 17:07:21,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385311229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:21,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:21,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:21,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530799729] [2022-03-01 17:07:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:21,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:21,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:21,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:21,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:21,285 INFO L87 Difference]: Start difference. First operand 1518 states and 6053 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:21,411 INFO L93 Difference]: Finished difference Result 3176 states and 11781 transitions. [2022-03-01 17:07:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:21,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:21,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:21,418 INFO L225 Difference]: With dead ends: 3176 [2022-03-01 17:07:21,418 INFO L226 Difference]: Without dead ends: 2922 [2022-03-01 17:07:21,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:21,419 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:21,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 171 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2022-03-01 17:07:21,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 1486. [2022-03-01 17:07:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.98989898989899) internal successors, (5925), 1485 states have internal predecessors, (5925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5925 transitions. [2022-03-01 17:07:21,447 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5925 transitions. Word has length 25 [2022-03-01 17:07:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:21,448 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5925 transitions. [2022-03-01 17:07:21,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5925 transitions. [2022-03-01 17:07:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:21,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:21,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:21,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 17:07:21,450 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:21,451 INFO L85 PathProgramCache]: Analyzing trace with hash -350012683, now seen corresponding path program 33 times [2022-03-01 17:07:21,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:21,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486957807] [2022-03-01 17:07:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:21,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:21,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:21,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486957807] [2022-03-01 17:07:21,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486957807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:21,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:21,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:21,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461512213] [2022-03-01 17:07:21,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:21,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:21,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:21,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:21,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:21,579 INFO L87 Difference]: Start difference. First operand 1486 states and 5925 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:21,704 INFO L93 Difference]: Finished difference Result 3058 states and 11363 transitions. [2022-03-01 17:07:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:21,704 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:21,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:21,711 INFO L225 Difference]: With dead ends: 3058 [2022-03-01 17:07:21,711 INFO L226 Difference]: Without dead ends: 2899 [2022-03-01 17:07:21,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:21,711 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 102 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:21,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 178 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:21,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2022-03-01 17:07:21,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1502. [2022-03-01 17:07:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.979347101932045) internal successors, (5973), 1501 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5973 transitions. [2022-03-01 17:07:21,742 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5973 transitions. Word has length 25 [2022-03-01 17:07:21,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:21,742 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5973 transitions. [2022-03-01 17:07:21,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5973 transitions. [2022-03-01 17:07:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:21,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:21,744 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] [2022-03-01 17:07:21,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 17:07:21,745 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:21,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:21,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1330483957, now seen corresponding path program 34 times [2022-03-01 17:07:21,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:21,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210329273] [2022-03-01 17:07:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:21,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:21,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210329273] [2022-03-01 17:07:21,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210329273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:21,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:21,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:21,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254555790] [2022-03-01 17:07:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:21,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:21,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:21,892 INFO L87 Difference]: Start difference. First operand 1502 states and 5973 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:21,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:21,995 INFO L93 Difference]: Finished difference Result 3082 states and 11439 transitions. [2022-03-01 17:07:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:21,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:21,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:22,001 INFO L225 Difference]: With dead ends: 3082 [2022-03-01 17:07:22,001 INFO L226 Difference]: Without dead ends: 2883 [2022-03-01 17:07:22,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:22,001 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:22,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:22,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-03-01 17:07:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1486. [2022-03-01 17:07:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9845117845117843) internal successors, (5917), 1485 states have internal predecessors, (5917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5917 transitions. [2022-03-01 17:07:22,028 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5917 transitions. Word has length 25 [2022-03-01 17:07:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:22,029 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5917 transitions. [2022-03-01 17:07:22,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5917 transitions. [2022-03-01 17:07:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:22,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:22,031 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] [2022-03-01 17:07:22,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 17:07:22,031 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:22,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1276237067, now seen corresponding path program 35 times [2022-03-01 17:07:22,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:22,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645091231] [2022-03-01 17:07:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:22,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:22,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:22,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645091231] [2022-03-01 17:07:22,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645091231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:22,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:22,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:22,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362489076] [2022-03-01 17:07:22,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:22,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:22,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:22,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:22,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:22,126 INFO L87 Difference]: Start difference. First operand 1486 states and 5917 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:22,229 INFO L93 Difference]: Finished difference Result 3173 states and 11786 transitions. [2022-03-01 17:07:22,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:22,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:22,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:22,235 INFO L225 Difference]: With dead ends: 3173 [2022-03-01 17:07:22,235 INFO L226 Difference]: Without dead ends: 2990 [2022-03-01 17:07:22,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:22,236 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:22,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 162 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:22,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-03-01 17:07:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1530. [2022-03-01 17:07:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1529 states have (on average 3.9692609548724658) internal successors, (6069), 1529 states have internal predecessors, (6069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 6069 transitions. [2022-03-01 17:07:22,291 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 6069 transitions. Word has length 25 [2022-03-01 17:07:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:22,291 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 6069 transitions. [2022-03-01 17:07:22,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 6069 transitions. [2022-03-01 17:07:22,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:22,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:22,293 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] [2022-03-01 17:07:22,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 17:07:22,293 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:22,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:22,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2014398291, now seen corresponding path program 36 times [2022-03-01 17:07:22,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:22,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606393479] [2022-03-01 17:07:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:22,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:22,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:22,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606393479] [2022-03-01 17:07:22,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606393479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:22,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:22,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:22,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403251517] [2022-03-01 17:07:22,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:22,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:22,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:22,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:22,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:22,447 INFO L87 Difference]: Start difference. First operand 1530 states and 6069 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:22,576 INFO L93 Difference]: Finished difference Result 3212 states and 11889 transitions. [2022-03-01 17:07:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:22,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:22,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:22,583 INFO L225 Difference]: With dead ends: 3212 [2022-03-01 17:07:22,583 INFO L226 Difference]: Without dead ends: 2930 [2022-03-01 17:07:22,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:22,584 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:22,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-01 17:07:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1470. [2022-03-01 17:07:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.989788972089857) internal successors, (5861), 1469 states have internal predecessors, (5861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5861 transitions. [2022-03-01 17:07:22,612 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5861 transitions. Word has length 25 [2022-03-01 17:07:22,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:22,612 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5861 transitions. [2022-03-01 17:07:22,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5861 transitions. [2022-03-01 17:07:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:22,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:22,615 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] [2022-03-01 17:07:22,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 17:07:22,615 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:22,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:22,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1689199057, now seen corresponding path program 37 times [2022-03-01 17:07:22,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:22,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009923616] [2022-03-01 17:07:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:22,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:22,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:22,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009923616] [2022-03-01 17:07:22,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009923616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:22,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:22,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:22,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092869583] [2022-03-01 17:07:22,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:22,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:22,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:22,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:22,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:22,734 INFO L87 Difference]: Start difference. First operand 1470 states and 5861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:22,846 INFO L93 Difference]: Finished difference Result 2991 states and 11110 transitions. [2022-03-01 17:07:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:22,853 INFO L225 Difference]: With dead ends: 2991 [2022-03-01 17:07:22,853 INFO L226 Difference]: Without dead ends: 2832 [2022-03-01 17:07:22,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:22,854 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 104 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:22,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 161 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:22,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2022-03-01 17:07:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1494. [2022-03-01 17:07:22,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.9819156061620897) internal successors, (5945), 1493 states have internal predecessors, (5945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5945 transitions. [2022-03-01 17:07:22,882 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5945 transitions. Word has length 25 [2022-03-01 17:07:22,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:22,882 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5945 transitions. [2022-03-01 17:07:22,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5945 transitions. [2022-03-01 17:07:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:22,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:22,885 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] [2022-03-01 17:07:22,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 17:07:22,885 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:22,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:22,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1015833489, now seen corresponding path program 38 times [2022-03-01 17:07:22,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:22,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975531290] [2022-03-01 17:07:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:22,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:23,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:23,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:23,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975531290] [2022-03-01 17:07:23,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975531290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:23,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:23,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:23,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604412686] [2022-03-01 17:07:23,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:23,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:23,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:23,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:23,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:23,007 INFO L87 Difference]: Start difference. First operand 1494 states and 5945 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:23,123 INFO L93 Difference]: Finished difference Result 3021 states and 11203 transitions. [2022-03-01 17:07:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:23,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:23,131 INFO L225 Difference]: With dead ends: 3021 [2022-03-01 17:07:23,131 INFO L226 Difference]: Without dead ends: 2816 [2022-03-01 17:07:23,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:23,132 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 122 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:23,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 139 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2816 states. [2022-03-01 17:07:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2816 to 1478. [2022-03-01 17:07:23,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.987136086662153) internal successors, (5889), 1477 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5889 transitions. [2022-03-01 17:07:23,165 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5889 transitions. Word has length 25 [2022-03-01 17:07:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:23,166 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5889 transitions. [2022-03-01 17:07:23,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5889 transitions. [2022-03-01 17:07:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:23,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:23,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:23,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 17:07:23,169 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:23,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1896007023, now seen corresponding path program 39 times [2022-03-01 17:07:23,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:23,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203782158] [2022-03-01 17:07:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:23,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:23,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203782158] [2022-03-01 17:07:23,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203782158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:23,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:23,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:23,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462096225] [2022-03-01 17:07:23,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:23,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:23,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:23,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:23,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:23,290 INFO L87 Difference]: Start difference. First operand 1478 states and 5889 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:23,415 INFO L93 Difference]: Finished difference Result 2985 states and 11085 transitions. [2022-03-01 17:07:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:23,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:23,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:23,422 INFO L225 Difference]: With dead ends: 2985 [2022-03-01 17:07:23,422 INFO L226 Difference]: Without dead ends: 2826 [2022-03-01 17:07:23,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:23,423 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 184 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 [2022-03-01 17:07:23,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 184 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:23,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2022-03-01 17:07:23,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 1494. [2022-03-01 17:07:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.9765572672471534) internal successors, (5937), 1493 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5937 transitions. [2022-03-01 17:07:23,452 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5937 transitions. Word has length 25 [2022-03-01 17:07:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:23,452 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5937 transitions. [2022-03-01 17:07:23,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5937 transitions. [2022-03-01 17:07:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:23,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:23,455 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] [2022-03-01 17:07:23,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 17:07:23,455 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash -215510383, now seen corresponding path program 40 times [2022-03-01 17:07:23,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:23,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357671309] [2022-03-01 17:07:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:23,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:23,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:23,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357671309] [2022-03-01 17:07:23,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357671309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:23,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:23,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:23,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020119309] [2022-03-01 17:07:23,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:23,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:23,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:23,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:23,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:23,591 INFO L87 Difference]: Start difference. First operand 1494 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:23,715 INFO L93 Difference]: Finished difference Result 3009 states and 11161 transitions. [2022-03-01 17:07:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:23,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:23,722 INFO L225 Difference]: With dead ends: 3009 [2022-03-01 17:07:23,722 INFO L226 Difference]: Without dead ends: 2810 [2022-03-01 17:07:23,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:23,723 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:23,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 152 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:23,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-01 17:07:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1478. [2022-03-01 17:07:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.981719702098849) internal successors, (5881), 1477 states have internal predecessors, (5881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5881 transitions. [2022-03-01 17:07:23,754 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5881 transitions. Word has length 25 [2022-03-01 17:07:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:23,754 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5881 transitions. [2022-03-01 17:07:23,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5881 transitions. [2022-03-01 17:07:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:23,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:23,757 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] [2022-03-01 17:07:23,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 17:07:23,757 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash -478845069, now seen corresponding path program 41 times [2022-03-01 17:07:23,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:23,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617775834] [2022-03-01 17:07:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:23,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:23,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617775834] [2022-03-01 17:07:23,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617775834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:23,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:23,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:23,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799918300] [2022-03-01 17:07:23,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:23,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:23,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:23,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:23,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:23,885 INFO L87 Difference]: Start difference. First operand 1478 states and 5881 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:24,026 INFO L93 Difference]: Finished difference Result 3057 states and 11347 transitions. [2022-03-01 17:07:24,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:24,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:24,033 INFO L225 Difference]: With dead ends: 3057 [2022-03-01 17:07:24,033 INFO L226 Difference]: Without dead ends: 2868 [2022-03-01 17:07:24,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:24,034 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:24,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 167 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:24,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2022-03-01 17:07:24,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1506. [2022-03-01 17:07:24,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.966112956810631) internal successors, (5969), 1505 states have internal predecessors, (5969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5969 transitions. [2022-03-01 17:07:24,065 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5969 transitions. Word has length 25 [2022-03-01 17:07:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:24,065 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5969 transitions. [2022-03-01 17:07:24,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5969 transitions. [2022-03-01 17:07:24,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:24,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:24,068 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] [2022-03-01 17:07:24,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 17:07:24,068 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:24,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:24,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1870989615, now seen corresponding path program 42 times [2022-03-01 17:07:24,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:24,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633052504] [2022-03-01 17:07:24,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:24,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:24,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:24,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633052504] [2022-03-01 17:07:24,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633052504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:24,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:24,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:24,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065654283] [2022-03-01 17:07:24,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:24,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:24,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:24,187 INFO L87 Difference]: Start difference. First operand 1506 states and 5969 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:24,310 INFO L93 Difference]: Finished difference Result 3051 states and 11302 transitions. [2022-03-01 17:07:24,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:24,317 INFO L225 Difference]: With dead ends: 3051 [2022-03-01 17:07:24,317 INFO L226 Difference]: Without dead ends: 2832 [2022-03-01 17:07:24,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:24,317 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:24,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 146 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:24,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2022-03-01 17:07:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 1470. [2022-03-01 17:07:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.987066031313819) internal successors, (5857), 1469 states have internal predecessors, (5857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5857 transitions. [2022-03-01 17:07:24,345 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5857 transitions. Word has length 25 [2022-03-01 17:07:24,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:24,345 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5857 transitions. [2022-03-01 17:07:24,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5857 transitions. [2022-03-01 17:07:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:24,348 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:24,348 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] [2022-03-01 17:07:24,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 17:07:24,348 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:24,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:24,348 INFO L85 PathProgramCache]: Analyzing trace with hash 426368213, now seen corresponding path program 43 times [2022-03-01 17:07:24,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:24,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846216139] [2022-03-01 17:07:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:24,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:24,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:24,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846216139] [2022-03-01 17:07:24,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846216139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:24,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:24,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:24,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760567947] [2022-03-01 17:07:24,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:24,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:24,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:24,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:24,475 INFO L87 Difference]: Start difference. First operand 1470 states and 5857 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:24,604 INFO L93 Difference]: Finished difference Result 3217 states and 11965 transitions. [2022-03-01 17:07:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:24,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:24,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:24,612 INFO L225 Difference]: With dead ends: 3217 [2022-03-01 17:07:24,612 INFO L226 Difference]: Without dead ends: 3028 [2022-03-01 17:07:24,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:24,612 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:24,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 149 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:24,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3028 states. [2022-03-01 17:07:24,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3028 to 1528. [2022-03-01 17:07:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 3.97773411918795) internal successors, (6074), 1527 states have internal predecessors, (6074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 6074 transitions. [2022-03-01 17:07:24,648 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 6074 transitions. Word has length 25 [2022-03-01 17:07:24,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:24,648 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 6074 transitions. [2022-03-01 17:07:24,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 6074 transitions. [2022-03-01 17:07:24,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:24,651 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:24,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:24,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 17:07:24,652 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:24,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:24,652 INFO L85 PathProgramCache]: Analyzing trace with hash -965776333, now seen corresponding path program 44 times [2022-03-01 17:07:24,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:24,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080570812] [2022-03-01 17:07:24,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:24,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:24,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:24,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080570812] [2022-03-01 17:07:24,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080570812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:24,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:24,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:24,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873394383] [2022-03-01 17:07:24,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:24,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:24,772 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:24,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:24,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:24,772 INFO L87 Difference]: Start difference. First operand 1528 states and 6074 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:24,896 INFO L93 Difference]: Finished difference Result 3211 states and 11920 transitions. [2022-03-01 17:07:24,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:24,896 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:24,904 INFO L225 Difference]: With dead ends: 3211 [2022-03-01 17:07:24,904 INFO L226 Difference]: Without dead ends: 3000 [2022-03-01 17:07:24,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:24,904 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:24,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 150 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:24,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2022-03-01 17:07:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 1500. [2022-03-01 17:07:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.983989326217478) internal successors, (5972), 1499 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5972 transitions. [2022-03-01 17:07:24,940 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5972 transitions. Word has length 25 [2022-03-01 17:07:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:24,940 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5972 transitions. [2022-03-01 17:07:24,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5972 transitions. [2022-03-01 17:07:24,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:24,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:24,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:24,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 17:07:24,944 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:24,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:24,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1631017395, now seen corresponding path program 45 times [2022-03-01 17:07:24,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:24,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398813985] [2022-03-01 17:07:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:24,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:25,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:25,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398813985] [2022-03-01 17:07:25,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398813985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:25,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:25,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:25,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319943750] [2022-03-01 17:07:25,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:25,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:25,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:25,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:25,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:25,089 INFO L87 Difference]: Start difference. First operand 1500 states and 5972 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:25,209 INFO L93 Difference]: Finished difference Result 3291 states and 12204 transitions. [2022-03-01 17:07:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:25,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:25,217 INFO L225 Difference]: With dead ends: 3291 [2022-03-01 17:07:25,217 INFO L226 Difference]: Without dead ends: 3102 [2022-03-01 17:07:25,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:25,218 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:25,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:25,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2022-03-01 17:07:25,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 1563. [2022-03-01 17:07:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1562 states have (on average 3.9558258642765685) internal successors, (6179), 1562 states have internal predecessors, (6179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 6179 transitions. [2022-03-01 17:07:25,248 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 6179 transitions. Word has length 25 [2022-03-01 17:07:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:25,248 INFO L470 AbstractCegarLoop]: Abstraction has 1563 states and 6179 transitions. [2022-03-01 17:07:25,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 6179 transitions. [2022-03-01 17:07:25,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:25,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:25,251 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] [2022-03-01 17:07:25,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 17:07:25,251 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:25,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1931867597, now seen corresponding path program 46 times [2022-03-01 17:07:25,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:25,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104550296] [2022-03-01 17:07:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:25,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:25,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:25,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104550296] [2022-03-01 17:07:25,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104550296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:25,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:25,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:25,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121643722] [2022-03-01 17:07:25,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:25,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:25,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:25,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:25,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:25,377 INFO L87 Difference]: Start difference. First operand 1563 states and 6179 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:25,485 INFO L93 Difference]: Finished difference Result 3324 states and 12287 transitions. [2022-03-01 17:07:25,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:25,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:25,492 INFO L225 Difference]: With dead ends: 3324 [2022-03-01 17:07:25,492 INFO L226 Difference]: Without dead ends: 3039 [2022-03-01 17:07:25,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:25,493 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:25,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 137 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2022-03-01 17:07:25,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 1500. [2022-03-01 17:07:25,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.963975983989326) internal successors, (5942), 1499 states have internal predecessors, (5942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5942 transitions. [2022-03-01 17:07:25,561 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5942 transitions. Word has length 25 [2022-03-01 17:07:25,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:25,562 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5942 transitions. [2022-03-01 17:07:25,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5942 transitions. [2022-03-01 17:07:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:25,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:25,564 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] [2022-03-01 17:07:25,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 17:07:25,565 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:25,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:25,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1995274769, now seen corresponding path program 47 times [2022-03-01 17:07:25,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:25,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355892613] [2022-03-01 17:07:25,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:25,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:25,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:25,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355892613] [2022-03-01 17:07:25,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355892613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:25,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:25,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:25,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529940469] [2022-03-01 17:07:25,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:25,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:25,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:25,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:25,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:25,691 INFO L87 Difference]: Start difference. First operand 1500 states and 5942 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:25,817 INFO L93 Difference]: Finished difference Result 3260 states and 12082 transitions. [2022-03-01 17:07:25,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:25,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:25,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:25,824 INFO L225 Difference]: With dead ends: 3260 [2022-03-01 17:07:25,825 INFO L226 Difference]: Without dead ends: 3077 [2022-03-01 17:07:25,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:25,827 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:25,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 152 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-03-01 17:07:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1544. [2022-03-01 17:07:25,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1543 states have (on average 3.949449125081011) internal successors, (6094), 1543 states have internal predecessors, (6094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 6094 transitions. [2022-03-01 17:07:25,859 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 6094 transitions. Word has length 25 [2022-03-01 17:07:25,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:25,859 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 6094 transitions. [2022-03-01 17:07:25,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:25,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 6094 transitions. [2022-03-01 17:07:25,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:25,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:25,861 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] [2022-03-01 17:07:25,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 17:07:25,862 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:25,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:25,862 INFO L85 PathProgramCache]: Analyzing trace with hash 925755763, now seen corresponding path program 48 times [2022-03-01 17:07:25,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:25,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418094085] [2022-03-01 17:07:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:25,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:25,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:25,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418094085] [2022-03-01 17:07:25,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418094085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:25,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:25,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:25,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318626910] [2022-03-01 17:07:25,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:25,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:25,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:25,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:25,978 INFO L87 Difference]: Start difference. First operand 1544 states and 6094 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:26,072 INFO L93 Difference]: Finished difference Result 3299 states and 12185 transitions. [2022-03-01 17:07:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:26,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:26,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:26,080 INFO L225 Difference]: With dead ends: 3299 [2022-03-01 17:07:26,080 INFO L226 Difference]: Without dead ends: 2991 [2022-03-01 17:07:26,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:26,082 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 178 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 [2022-03-01 17:07:26,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 178 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:26,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-03-01 17:07:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 1458. [2022-03-01 17:07:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9938229238160603) internal successors, (5819), 1457 states have internal predecessors, (5819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5819 transitions. [2022-03-01 17:07:26,117 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5819 transitions. Word has length 25 [2022-03-01 17:07:26,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:26,117 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5819 transitions. [2022-03-01 17:07:26,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5819 transitions. [2022-03-01 17:07:26,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:26,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:26,120 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] [2022-03-01 17:07:26,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 17:07:26,121 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:26,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:26,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1259486381, now seen corresponding path program 49 times [2022-03-01 17:07:26,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:26,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683466554] [2022-03-01 17:07:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:26,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:26,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:26,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683466554] [2022-03-01 17:07:26,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683466554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:26,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:26,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:26,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819393511] [2022-03-01 17:07:26,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:26,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:26,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:26,256 INFO L87 Difference]: Start difference. First operand 1458 states and 5819 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:26,355 INFO L93 Difference]: Finished difference Result 3080 states and 11471 transitions. [2022-03-01 17:07:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:26,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:26,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:26,362 INFO L225 Difference]: With dead ends: 3080 [2022-03-01 17:07:26,362 INFO L226 Difference]: Without dead ends: 2921 [2022-03-01 17:07:26,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:26,363 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 114 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:26,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:26,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-03-01 17:07:26,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1514. [2022-03-01 17:07:26,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.994051553205552) internal successors, (6043), 1513 states have internal predecessors, (6043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6043 transitions. [2022-03-01 17:07:26,396 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6043 transitions. Word has length 25 [2022-03-01 17:07:26,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:26,396 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6043 transitions. [2022-03-01 17:07:26,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6043 transitions. [2022-03-01 17:07:26,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:26,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:26,401 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] [2022-03-01 17:07:26,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 17:07:26,401 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:26,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:26,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2027182931, now seen corresponding path program 50 times [2022-03-01 17:07:26,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:26,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378388870] [2022-03-01 17:07:26,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:26,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:26,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:26,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378388870] [2022-03-01 17:07:26,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378388870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:26,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:26,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:26,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101453902] [2022-03-01 17:07:26,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:26,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:26,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:26,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:26,541 INFO L87 Difference]: Start difference. First operand 1514 states and 6043 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:26,640 INFO L93 Difference]: Finished difference Result 3143 states and 11678 transitions. [2022-03-01 17:07:26,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:26,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:26,646 INFO L225 Difference]: With dead ends: 3143 [2022-03-01 17:07:26,647 INFO L226 Difference]: Without dead ends: 2889 [2022-03-01 17:07:26,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:26,647 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:26,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:26,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2022-03-01 17:07:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 1482. [2022-03-01 17:07:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9939230249831197) internal successors, (5915), 1481 states have internal predecessors, (5915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5915 transitions. [2022-03-01 17:07:26,674 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5915 transitions. Word has length 25 [2022-03-01 17:07:26,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:26,674 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5915 transitions. [2022-03-01 17:07:26,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5915 transitions. [2022-03-01 17:07:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:26,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:26,677 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] [2022-03-01 17:07:26,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 17:07:26,677 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:26,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash -270452875, now seen corresponding path program 51 times [2022-03-01 17:07:26,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:26,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910747252] [2022-03-01 17:07:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:26,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:26,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910747252] [2022-03-01 17:07:26,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910747252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:26,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:26,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:26,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914318524] [2022-03-01 17:07:26,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:26,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:26,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:26,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:26,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:26,798 INFO L87 Difference]: Start difference. First operand 1482 states and 5915 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:26,892 INFO L93 Difference]: Finished difference Result 3029 states and 11272 transitions. [2022-03-01 17:07:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:26,898 INFO L225 Difference]: With dead ends: 3029 [2022-03-01 17:07:26,898 INFO L226 Difference]: Without dead ends: 2870 [2022-03-01 17:07:26,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:26,899 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:26,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2022-03-01 17:07:26,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1498. [2022-03-01 17:07:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9832999331997327) internal successors, (5963), 1497 states have internal predecessors, (5963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5963 transitions. [2022-03-01 17:07:26,927 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5963 transitions. Word has length 25 [2022-03-01 17:07:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:26,927 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5963 transitions. [2022-03-01 17:07:26,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5963 transitions. [2022-03-01 17:07:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:26,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:26,930 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] [2022-03-01 17:07:26,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 17:07:26,930 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:26,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:26,930 INFO L85 PathProgramCache]: Analyzing trace with hash 737845109, now seen corresponding path program 52 times [2022-03-01 17:07:26,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:26,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074918042] [2022-03-01 17:07:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:27,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:27,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074918042] [2022-03-01 17:07:27,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074918042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:27,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:27,061 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:27,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248593838] [2022-03-01 17:07:27,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:27,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:27,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:27,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:27,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:27,062 INFO L87 Difference]: Start difference. First operand 1498 states and 5963 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:27,206 INFO L93 Difference]: Finished difference Result 3057 states and 11360 transitions. [2022-03-01 17:07:27,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:27,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:27,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:27,212 INFO L225 Difference]: With dead ends: 3057 [2022-03-01 17:07:27,212 INFO L226 Difference]: Without dead ends: 2854 [2022-03-01 17:07:27,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:27,214 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 92 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 192 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 [2022-03-01 17:07:27,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 192 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-03-01 17:07:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1482. [2022-03-01 17:07:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.988521269412559) internal successors, (5907), 1481 states have internal predecessors, (5907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5907 transitions. [2022-03-01 17:07:27,246 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5907 transitions. Word has length 25 [2022-03-01 17:07:27,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:27,246 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5907 transitions. [2022-03-01 17:07:27,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5907 transitions. [2022-03-01 17:07:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:27,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:27,248 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] [2022-03-01 17:07:27,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 17:07:27,249 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:27,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1868875915, now seen corresponding path program 53 times [2022-03-01 17:07:27,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:27,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511177941] [2022-03-01 17:07:27,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:27,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:27,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:27,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511177941] [2022-03-01 17:07:27,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511177941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:27,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:27,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:27,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73894664] [2022-03-01 17:07:27,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:27,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:27,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:27,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:27,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:27,379 INFO L87 Difference]: Start difference. First operand 1482 states and 5907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:27,478 INFO L93 Difference]: Finished difference Result 3150 states and 11714 transitions. [2022-03-01 17:07:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:27,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:27,485 INFO L225 Difference]: With dead ends: 3150 [2022-03-01 17:07:27,485 INFO L226 Difference]: Without dead ends: 2963 [2022-03-01 17:07:27,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:27,485 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:27,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 155 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2963 states. [2022-03-01 17:07:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2963 to 1528. [2022-03-01 17:07:27,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 3.971185330713818) internal successors, (6064), 1527 states have internal predecessors, (6064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 6064 transitions. [2022-03-01 17:07:27,518 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 6064 transitions. Word has length 25 [2022-03-01 17:07:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:27,518 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 6064 transitions. [2022-03-01 17:07:27,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 6064 transitions. [2022-03-01 17:07:27,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:27,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:27,521 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] [2022-03-01 17:07:27,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 17:07:27,521 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:27,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:27,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2072951891, now seen corresponding path program 54 times [2022-03-01 17:07:27,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:27,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628127701] [2022-03-01 17:07:27,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:27,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:27,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:27,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628127701] [2022-03-01 17:07:27,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628127701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:27,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:27,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:27,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998043780] [2022-03-01 17:07:27,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:27,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:27,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:27,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:27,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:27,641 INFO L87 Difference]: Start difference. First operand 1528 states and 6064 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:27,754 INFO L93 Difference]: Finished difference Result 3185 states and 11803 transitions. [2022-03-01 17:07:27,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:27,754 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:27,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:27,760 INFO L225 Difference]: With dead ends: 3185 [2022-03-01 17:07:27,760 INFO L226 Difference]: Without dead ends: 2901 [2022-03-01 17:07:27,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:27,760 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 118 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:27,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 148 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-03-01 17:07:27,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1466. [2022-03-01 17:07:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 3.9938566552901023) internal successors, (5851), 1465 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5851 transitions. [2022-03-01 17:07:27,788 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5851 transitions. Word has length 25 [2022-03-01 17:07:27,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:27,788 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5851 transitions. [2022-03-01 17:07:27,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5851 transitions. [2022-03-01 17:07:27,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:27,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:27,790 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] [2022-03-01 17:07:27,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 17:07:27,790 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:27,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:27,791 INFO L85 PathProgramCache]: Analyzing trace with hash 450115381, now seen corresponding path program 55 times [2022-03-01 17:07:27,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:27,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254242628] [2022-03-01 17:07:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:27,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:27,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:27,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254242628] [2022-03-01 17:07:27,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254242628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:27,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:27,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:27,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217731401] [2022-03-01 17:07:27,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:27,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:27,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:27,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:27,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:27,889 INFO L87 Difference]: Start difference. First operand 1466 states and 5851 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:27,968 INFO L93 Difference]: Finished difference Result 3074 states and 11444 transitions. [2022-03-01 17:07:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:27,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:27,974 INFO L225 Difference]: With dead ends: 3074 [2022-03-01 17:07:27,974 INFO L226 Difference]: Without dead ends: 2915 [2022-03-01 17:07:27,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:27,975 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:27,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:27,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2022-03-01 17:07:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 1514. [2022-03-01 17:07:28,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.9887640449438204) internal successors, (6035), 1513 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 6035 transitions. [2022-03-01 17:07:28,003 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 6035 transitions. Word has length 25 [2022-03-01 17:07:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:28,003 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 6035 transitions. [2022-03-01 17:07:28,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 6035 transitions. [2022-03-01 17:07:28,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:28,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:28,006 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] [2022-03-01 17:07:28,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 17:07:28,006 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:28,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:28,006 INFO L85 PathProgramCache]: Analyzing trace with hash -558182603, now seen corresponding path program 56 times [2022-03-01 17:07:28,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:28,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777085589] [2022-03-01 17:07:28,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:28,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:28,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:28,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777085589] [2022-03-01 17:07:28,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777085589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:28,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:28,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:28,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820828853] [2022-03-01 17:07:28,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:28,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:28,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:28,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:28,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:28,116 INFO L87 Difference]: Start difference. First operand 1514 states and 6035 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:28,215 INFO L93 Difference]: Finished difference Result 3137 states and 11651 transitions. [2022-03-01 17:07:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:28,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:28,221 INFO L225 Difference]: With dead ends: 3137 [2022-03-01 17:07:28,221 INFO L226 Difference]: Without dead ends: 2883 [2022-03-01 17:07:28,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:28,227 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:28,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 146 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2022-03-01 17:07:28,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 1482. [2022-03-01 17:07:28,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.988521269412559) internal successors, (5907), 1481 states have internal predecessors, (5907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5907 transitions. [2022-03-01 17:07:28,257 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5907 transitions. Word has length 25 [2022-03-01 17:07:28,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:28,257 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5907 transitions. [2022-03-01 17:07:28,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,257 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5907 transitions. [2022-03-01 17:07:28,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:28,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:28,259 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] [2022-03-01 17:07:28,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 17:07:28,260 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:28,261 INFO L85 PathProgramCache]: Analyzing trace with hash 455868149, now seen corresponding path program 57 times [2022-03-01 17:07:28,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:28,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510061790] [2022-03-01 17:07:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:28,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:28,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:28,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:28,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510061790] [2022-03-01 17:07:28,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510061790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:28,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:28,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:28,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847868428] [2022-03-01 17:07:28,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:28,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:28,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:28,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:28,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:28,389 INFO L87 Difference]: Start difference. First operand 1482 states and 5907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:28,527 INFO L93 Difference]: Finished difference Result 3019 states and 11233 transitions. [2022-03-01 17:07:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:28,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:28,534 INFO L225 Difference]: With dead ends: 3019 [2022-03-01 17:07:28,534 INFO L226 Difference]: Without dead ends: 2860 [2022-03-01 17:07:28,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:28,535 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 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 [2022-03-01 17:07:28,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 185 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:28,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-03-01 17:07:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1498. [2022-03-01 17:07:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9779559118236474) internal successors, (5955), 1497 states have internal predecessors, (5955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5955 transitions. [2022-03-01 17:07:28,563 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5955 transitions. Word has length 25 [2022-03-01 17:07:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:28,563 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5955 transitions. [2022-03-01 17:07:28,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5955 transitions. [2022-03-01 17:07:28,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:28,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:28,565 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] [2022-03-01 17:07:28,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 17:07:28,566 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:28,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:28,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2136364789, now seen corresponding path program 58 times [2022-03-01 17:07:28,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:28,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82269507] [2022-03-01 17:07:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:28,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:28,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82269507] [2022-03-01 17:07:28,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82269507] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:28,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:28,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:28,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9559320] [2022-03-01 17:07:28,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:28,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:28,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:28,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:28,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:28,736 INFO L87 Difference]: Start difference. First operand 1498 states and 5955 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:28,854 INFO L93 Difference]: Finished difference Result 3043 states and 11309 transitions. [2022-03-01 17:07:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:28,862 INFO L225 Difference]: With dead ends: 3043 [2022-03-01 17:07:28,862 INFO L226 Difference]: Without dead ends: 2844 [2022-03-01 17:07:28,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:28,863 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:28,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 152 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:28,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2022-03-01 17:07:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 1482. [2022-03-01 17:07:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.9831195138419986) internal successors, (5899), 1481 states have internal predecessors, (5899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5899 transitions. [2022-03-01 17:07:28,895 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5899 transitions. Word has length 25 [2022-03-01 17:07:28,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:28,896 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5899 transitions. [2022-03-01 17:07:28,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:28,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5899 transitions. [2022-03-01 17:07:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:28,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:28,898 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] [2022-03-01 17:07:28,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 17:07:28,899 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:28,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash -470356235, now seen corresponding path program 59 times [2022-03-01 17:07:28,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:28,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547975203] [2022-03-01 17:07:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:29,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:29,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:29,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547975203] [2022-03-01 17:07:29,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547975203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:29,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:29,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:29,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66404337] [2022-03-01 17:07:29,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:29,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:29,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:29,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:29,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:29,040 INFO L87 Difference]: Start difference. First operand 1482 states and 5899 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:29,164 INFO L93 Difference]: Finished difference Result 3134 states and 11656 transitions. [2022-03-01 17:07:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:29,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:29,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:29,175 INFO L225 Difference]: With dead ends: 3134 [2022-03-01 17:07:29,176 INFO L226 Difference]: Without dead ends: 2951 [2022-03-01 17:07:29,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:29,176 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:29,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 160 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-03-01 17:07:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 1526. [2022-03-01 17:07:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 3.9678688524590164) internal successors, (6051), 1525 states have internal predecessors, (6051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 6051 transitions. [2022-03-01 17:07:29,229 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 6051 transitions. Word has length 25 [2022-03-01 17:07:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:29,229 INFO L470 AbstractCegarLoop]: Abstraction has 1526 states and 6051 transitions. [2022-03-01 17:07:29,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 6051 transitions. [2022-03-01 17:07:29,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:29,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:29,233 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] [2022-03-01 17:07:29,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 17:07:29,233 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:29,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1474688173, now seen corresponding path program 60 times [2022-03-01 17:07:29,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:29,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164014018] [2022-03-01 17:07:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:29,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:29,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164014018] [2022-03-01 17:07:29,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164014018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:29,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:29,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:29,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538896931] [2022-03-01 17:07:29,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:29,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:29,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:29,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:29,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:29,399 INFO L87 Difference]: Start difference. First operand 1526 states and 6051 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:29,507 INFO L93 Difference]: Finished difference Result 3173 states and 11759 transitions. [2022-03-01 17:07:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:29,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:29,514 INFO L225 Difference]: With dead ends: 3173 [2022-03-01 17:07:29,514 INFO L226 Difference]: Without dead ends: 2891 [2022-03-01 17:07:29,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:29,514 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:29,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 160 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:29,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2022-03-01 17:07:29,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1466. [2022-03-01 17:07:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 3.98839590443686) internal successors, (5843), 1465 states have internal predecessors, (5843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5843 transitions. [2022-03-01 17:07:29,549 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5843 transitions. Word has length 25 [2022-03-01 17:07:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:29,550 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5843 transitions. [2022-03-01 17:07:29,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5843 transitions. [2022-03-01 17:07:29,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:29,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:29,552 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] [2022-03-01 17:07:29,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 17:07:29,552 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:29,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash -8519017, now seen corresponding path program 61 times [2022-03-01 17:07:29,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:29,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205607291] [2022-03-01 17:07:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:29,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:29,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:29,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205607291] [2022-03-01 17:07:29,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205607291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:29,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:29,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:29,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063866945] [2022-03-01 17:07:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:29,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:29,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:29,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:29,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:29,689 INFO L87 Difference]: Start difference. First operand 1466 states and 5843 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:29,790 INFO L93 Difference]: Finished difference Result 2948 states and 10970 transitions. [2022-03-01 17:07:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:29,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:29,796 INFO L225 Difference]: With dead ends: 2948 [2022-03-01 17:07:29,797 INFO L226 Difference]: Without dead ends: 2789 [2022-03-01 17:07:29,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:29,799 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:29,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 162 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:29,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-03-01 17:07:29,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1490. [2022-03-01 17:07:29,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.9805238415043656) internal successors, (5927), 1489 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5927 transitions. [2022-03-01 17:07:29,830 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5927 transitions. Word has length 25 [2022-03-01 17:07:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:29,830 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5927 transitions. [2022-03-01 17:07:29,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5927 transitions. [2022-03-01 17:07:29,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:29,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:29,832 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] [2022-03-01 17:07:29,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 17:07:29,832 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 999778967, now seen corresponding path program 62 times [2022-03-01 17:07:29,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:29,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994971092] [2022-03-01 17:07:29,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:29,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:29,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:29,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994971092] [2022-03-01 17:07:29,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994971092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:29,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:29,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:29,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173303047] [2022-03-01 17:07:29,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:29,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:29,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:29,956 INFO L87 Difference]: Start difference. First operand 1490 states and 5927 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:30,044 INFO L93 Difference]: Finished difference Result 2976 states and 11058 transitions. [2022-03-01 17:07:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:30,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:30,063 INFO L225 Difference]: With dead ends: 2976 [2022-03-01 17:07:30,063 INFO L226 Difference]: Without dead ends: 2773 [2022-03-01 17:07:30,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:30,063 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 130 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:30,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 131 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:30,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2022-03-01 17:07:30,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 1474. [2022-03-01 17:07:30,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9857433808553973) internal successors, (5871), 1473 states have internal predecessors, (5871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5871 transitions. [2022-03-01 17:07:30,115 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5871 transitions. Word has length 25 [2022-03-01 17:07:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:30,115 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5871 transitions. [2022-03-01 17:07:30,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5871 transitions. [2022-03-01 17:07:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:30,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:30,118 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] [2022-03-01 17:07:30,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 17:07:30,118 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -855315979, now seen corresponding path program 63 times [2022-03-01 17:07:30,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:30,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371524024] [2022-03-01 17:07:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:30,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:30,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:30,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371524024] [2022-03-01 17:07:30,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371524024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:30,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:30,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:30,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922020552] [2022-03-01 17:07:30,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:30,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:30,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:30,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:30,242 INFO L87 Difference]: Start difference. First operand 1474 states and 5871 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:30,364 INFO L93 Difference]: Finished difference Result 2944 states and 10950 transitions. [2022-03-01 17:07:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:30,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:30,374 INFO L225 Difference]: With dead ends: 2944 [2022-03-01 17:07:30,374 INFO L226 Difference]: Without dead ends: 2785 [2022-03-01 17:07:30,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:30,374 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:30,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 157 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:30,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2022-03-01 17:07:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 1490. [2022-03-01 17:07:30,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1489 states have (on average 3.9751511081262594) internal successors, (5919), 1489 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 5919 transitions. [2022-03-01 17:07:30,437 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 5919 transitions. Word has length 25 [2022-03-01 17:07:30,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:30,437 INFO L470 AbstractCegarLoop]: Abstraction has 1490 states and 5919 transitions. [2022-03-01 17:07:30,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 5919 transitions. [2022-03-01 17:07:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:30,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:30,440 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] [2022-03-01 17:07:30,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 17:07:30,440 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash -885175657, now seen corresponding path program 64 times [2022-03-01 17:07:30,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:30,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533861388] [2022-03-01 17:07:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:30,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:30,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:30,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533861388] [2022-03-01 17:07:30,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533861388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:30,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:30,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:30,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74561666] [2022-03-01 17:07:30,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:30,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:30,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:30,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:30,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:30,559 INFO L87 Difference]: Start difference. First operand 1490 states and 5919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:30,679 INFO L93 Difference]: Finished difference Result 2968 states and 11026 transitions. [2022-03-01 17:07:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:30,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:30,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:30,688 INFO L225 Difference]: With dead ends: 2968 [2022-03-01 17:07:30,688 INFO L226 Difference]: Without dead ends: 2769 [2022-03-01 17:07:30,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:30,688 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:30,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 147 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:30,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2022-03-01 17:07:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1474. [2022-03-01 17:07:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9803122878479296) internal successors, (5863), 1473 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5863 transitions. [2022-03-01 17:07:30,731 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5863 transitions. Word has length 25 [2022-03-01 17:07:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:30,731 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5863 transitions. [2022-03-01 17:07:30,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5863 transitions. [2022-03-01 17:07:30,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:30,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:30,734 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] [2022-03-01 17:07:30,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 17:07:30,734 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1049346711, now seen corresponding path program 65 times [2022-03-01 17:07:30,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:30,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240162757] [2022-03-01 17:07:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:30,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:30,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:30,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240162757] [2022-03-01 17:07:30,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240162757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:30,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:30,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:30,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648435859] [2022-03-01 17:07:30,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:30,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:30,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:30,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:30,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:30,853 INFO L87 Difference]: Start difference. First operand 1474 states and 5863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:30,972 INFO L93 Difference]: Finished difference Result 3012 states and 11202 transitions. [2022-03-01 17:07:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:30,980 INFO L225 Difference]: With dead ends: 3012 [2022-03-01 17:07:30,980 INFO L226 Difference]: Without dead ends: 2825 [2022-03-01 17:07:30,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:30,981 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:30,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 160 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:30,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2022-03-01 17:07:31,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1502. [2022-03-01 17:07:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.9646902065289806) internal successors, (5951), 1501 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5951 transitions. [2022-03-01 17:07:31,020 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5951 transitions. Word has length 25 [2022-03-01 17:07:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:31,020 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5951 transitions. [2022-03-01 17:07:31,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5951 transitions. [2022-03-01 17:07:31,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:31,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:31,023 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] [2022-03-01 17:07:31,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 17:07:31,023 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:31,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:31,024 INFO L85 PathProgramCache]: Analyzing trace with hash -993990283, now seen corresponding path program 66 times [2022-03-01 17:07:31,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:31,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398075345] [2022-03-01 17:07:31,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:31,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:31,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:31,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398075345] [2022-03-01 17:07:31,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398075345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:31,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:31,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:31,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546865380] [2022-03-01 17:07:31,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:31,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:31,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:31,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:31,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:31,136 INFO L87 Difference]: Start difference. First operand 1502 states and 5951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:31,258 INFO L93 Difference]: Finished difference Result 3008 states and 11162 transitions. [2022-03-01 17:07:31,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:31,279 INFO L225 Difference]: With dead ends: 3008 [2022-03-01 17:07:31,279 INFO L226 Difference]: Without dead ends: 2789 [2022-03-01 17:07:31,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:31,279 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:31,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 138 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2022-03-01 17:07:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 1466. [2022-03-01 17:07:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 3.9856655290102387) internal successors, (5839), 1465 states have internal predecessors, (5839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 5839 transitions. [2022-03-01 17:07:31,309 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 5839 transitions. Word has length 25 [2022-03-01 17:07:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:31,309 INFO L470 AbstractCegarLoop]: Abstraction has 1466 states and 5839 transitions. [2022-03-01 17:07:31,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 5839 transitions. [2022-03-01 17:07:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:31,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:31,311 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] [2022-03-01 17:07:31,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 17:07:31,311 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:31,311 INFO L85 PathProgramCache]: Analyzing trace with hash -43623785, now seen corresponding path program 67 times [2022-03-01 17:07:31,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:31,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562048179] [2022-03-01 17:07:31,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:31,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:31,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:31,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562048179] [2022-03-01 17:07:31,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562048179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:31,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:31,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:31,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749102220] [2022-03-01 17:07:31,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:31,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:31,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:31,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:31,431 INFO L87 Difference]: Start difference. First operand 1466 states and 5839 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:31,557 INFO L93 Difference]: Finished difference Result 3147 states and 11741 transitions. [2022-03-01 17:07:31,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:31,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:31,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:31,565 INFO L225 Difference]: With dead ends: 3147 [2022-03-01 17:07:31,565 INFO L226 Difference]: Without dead ends: 2960 [2022-03-01 17:07:31,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:31,566 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:31,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 154 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2022-03-01 17:07:31,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 1516. [2022-03-01 17:07:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1515 states have (on average 3.9788778877887787) internal successors, (6028), 1515 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 6028 transitions. [2022-03-01 17:07:31,597 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 6028 transitions. Word has length 25 [2022-03-01 17:07:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:31,598 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 6028 transitions. [2022-03-01 17:07:31,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 6028 transitions. [2022-03-01 17:07:31,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:31,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:31,600 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] [2022-03-01 17:07:31,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 17:07:31,600 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:31,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2086960779, now seen corresponding path program 68 times [2022-03-01 17:07:31,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:31,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514633319] [2022-03-01 17:07:31,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:31,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:31,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:31,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514633319] [2022-03-01 17:07:31,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514633319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:31,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:31,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:31,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165609374] [2022-03-01 17:07:31,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:31,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:31,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:31,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:31,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:31,759 INFO L87 Difference]: Start difference. First operand 1516 states and 6028 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:31,928 INFO L93 Difference]: Finished difference Result 3143 states and 11701 transitions. [2022-03-01 17:07:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:31,935 INFO L225 Difference]: With dead ends: 3143 [2022-03-01 17:07:31,935 INFO L226 Difference]: Without dead ends: 2932 [2022-03-01 17:07:31,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:31,936 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 94 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:31,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 159 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2932 states. [2022-03-01 17:07:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2932 to 1488. [2022-03-01 17:07:31,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.985205110961668) internal successors, (5926), 1487 states have internal predecessors, (5926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5926 transitions. [2022-03-01 17:07:31,974 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5926 transitions. Word has length 25 [2022-03-01 17:07:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:31,975 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5926 transitions. [2022-03-01 17:07:31,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5926 transitions. [2022-03-01 17:07:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:31,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:31,978 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] [2022-03-01 17:07:31,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 17:07:31,978 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:31,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:31,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1161025397, now seen corresponding path program 69 times [2022-03-01 17:07:31,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:31,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244380812] [2022-03-01 17:07:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:31,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:32,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:32,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244380812] [2022-03-01 17:07:32,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244380812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:32,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:32,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:32,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369828367] [2022-03-01 17:07:32,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:32,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:32,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:32,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:32,103 INFO L87 Difference]: Start difference. First operand 1488 states and 5926 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:32,229 INFO L93 Difference]: Finished difference Result 3204 states and 11929 transitions. [2022-03-01 17:07:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:32,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:32,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:32,239 INFO L225 Difference]: With dead ends: 3204 [2022-03-01 17:07:32,240 INFO L226 Difference]: Without dead ends: 3017 [2022-03-01 17:07:32,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:32,240 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:32,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2022-03-01 17:07:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 1534. [2022-03-01 17:07:32,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1533 states have (on average 3.9680365296803655) internal successors, (6083), 1533 states have internal predecessors, (6083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 6083 transitions. [2022-03-01 17:07:32,296 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 6083 transitions. Word has length 25 [2022-03-01 17:07:32,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:32,296 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 6083 transitions. [2022-03-01 17:07:32,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 6083 transitions. [2022-03-01 17:07:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:32,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:32,301 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] [2022-03-01 17:07:32,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 17:07:32,301 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1241915253, now seen corresponding path program 70 times [2022-03-01 17:07:32,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:32,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102662938] [2022-03-01 17:07:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:32,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:32,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:32,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102662938] [2022-03-01 17:07:32,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102662938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:32,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:32,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:32,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448109547] [2022-03-01 17:07:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:32,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:32,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:32,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:32,464 INFO L87 Difference]: Start difference. First operand 1534 states and 6083 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:32,604 INFO L93 Difference]: Finished difference Result 3239 states and 12018 transitions. [2022-03-01 17:07:32,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:32,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:32,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:32,614 INFO L225 Difference]: With dead ends: 3239 [2022-03-01 17:07:32,614 INFO L226 Difference]: Without dead ends: 2971 [2022-03-01 17:07:32,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:32,615 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:32,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 145 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2022-03-01 17:07:32,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 1488. [2022-03-01 17:07:32,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.9704102219233355) internal successors, (5904), 1487 states have internal predecessors, (5904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5904 transitions. [2022-03-01 17:07:32,664 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5904 transitions. Word has length 25 [2022-03-01 17:07:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:32,664 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5904 transitions. [2022-03-01 17:07:32,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5904 transitions. [2022-03-01 17:07:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:32,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:32,668 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] [2022-03-01 17:07:32,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 17:07:32,668 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:32,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:32,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2143373011, now seen corresponding path program 71 times [2022-03-01 17:07:32,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:32,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389758627] [2022-03-01 17:07:32,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:32,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:32,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:32,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389758627] [2022-03-01 17:07:32,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389758627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:32,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:32,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:32,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350589640] [2022-03-01 17:07:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:32,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:32,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:32,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:32,830 INFO L87 Difference]: Start difference. First operand 1488 states and 5904 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:32,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:32,976 INFO L93 Difference]: Finished difference Result 3194 states and 11876 transitions. [2022-03-01 17:07:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:32,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:32,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:32,984 INFO L225 Difference]: With dead ends: 3194 [2022-03-01 17:07:32,984 INFO L226 Difference]: Without dead ends: 3011 [2022-03-01 17:07:32,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:32,985 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:32,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 175 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:32,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2022-03-01 17:07:33,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 1532. [2022-03-01 17:07:33,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 3.955584585238406) internal successors, (6056), 1531 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 6056 transitions. [2022-03-01 17:07:33,017 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 6056 transitions. Word has length 25 [2022-03-01 17:07:33,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:33,017 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 6056 transitions. [2022-03-01 17:07:33,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 6056 transitions. [2022-03-01 17:07:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:33,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:33,020 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] [2022-03-01 17:07:33,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 17:07:33,020 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:33,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1073854005, now seen corresponding path program 72 times [2022-03-01 17:07:33,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:33,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505604196] [2022-03-01 17:07:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:33,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:33,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:33,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505604196] [2022-03-01 17:07:33,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505604196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:33,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:33,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:33,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712858012] [2022-03-01 17:07:33,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:33,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:33,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:33,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:33,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:33,146 INFO L87 Difference]: Start difference. First operand 1532 states and 6056 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:33,249 INFO L93 Difference]: Finished difference Result 3233 states and 11979 transitions. [2022-03-01 17:07:33,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:33,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:33,255 INFO L225 Difference]: With dead ends: 3233 [2022-03-01 17:07:33,255 INFO L226 Difference]: Without dead ends: 2937 [2022-03-01 17:07:33,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:33,256 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 100 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:33,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 154 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:33,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2022-03-01 17:07:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1458. [2022-03-01 17:07:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9910775566231984) internal successors, (5815), 1457 states have internal predecessors, (5815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5815 transitions. [2022-03-01 17:07:33,291 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5815 transitions. Word has length 25 [2022-03-01 17:07:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:33,292 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5815 transitions. [2022-03-01 17:07:33,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5815 transitions. [2022-03-01 17:07:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:33,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:33,294 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] [2022-03-01 17:07:33,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 17:07:33,295 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash 442501743, now seen corresponding path program 73 times [2022-03-01 17:07:33,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:33,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559255490] [2022-03-01 17:07:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:33,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:33,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:33,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559255490] [2022-03-01 17:07:33,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559255490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:33,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:33,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:33,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869927184] [2022-03-01 17:07:33,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:33,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:33,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:33,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:33,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:33,415 INFO L87 Difference]: Start difference. First operand 1458 states and 5815 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:33,495 INFO L93 Difference]: Finished difference Result 2849 states and 10577 transitions. [2022-03-01 17:07:33,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:33,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:33,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:33,501 INFO L225 Difference]: With dead ends: 2849 [2022-03-01 17:07:33,501 INFO L226 Difference]: Without dead ends: 2690 [2022-03-01 17:07:33,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:33,502 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:33,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 164 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:33,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-03-01 17:07:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1486. [2022-03-01 17:07:33,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.985858585858586) internal successors, (5919), 1485 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5919 transitions. [2022-03-01 17:07:33,527 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5919 transitions. Word has length 25 [2022-03-01 17:07:33,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:33,527 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5919 transitions. [2022-03-01 17:07:33,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5919 transitions. [2022-03-01 17:07:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:33,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:33,529 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] [2022-03-01 17:07:33,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 17:07:33,529 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:33,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:33,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1147433007, now seen corresponding path program 74 times [2022-03-01 17:07:33,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:33,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827692757] [2022-03-01 17:07:33,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:33,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:33,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:33,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827692757] [2022-03-01 17:07:33,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827692757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:33,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:33,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:33,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109149166] [2022-03-01 17:07:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:33,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:33,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:33,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:33,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:33,643 INFO L87 Difference]: Start difference. First operand 1486 states and 5919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:33,773 INFO L93 Difference]: Finished difference Result 2879 states and 10670 transitions. [2022-03-01 17:07:33,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:33,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:33,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:33,778 INFO L225 Difference]: With dead ends: 2879 [2022-03-01 17:07:33,778 INFO L226 Difference]: Without dead ends: 2674 [2022-03-01 17:07:33,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:33,779 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 86 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:33,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 201 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:33,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-03-01 17:07:33,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 1470. [2022-03-01 17:07:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9911504424778763) internal successors, (5863), 1469 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5863 transitions. [2022-03-01 17:07:33,804 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5863 transitions. Word has length 25 [2022-03-01 17:07:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:33,804 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5863 transitions. [2022-03-01 17:07:33,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5863 transitions. [2022-03-01 17:07:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:33,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:33,806 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] [2022-03-01 17:07:33,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 17:07:33,806 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:33,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:33,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1523564369, now seen corresponding path program 75 times [2022-03-01 17:07:33,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:33,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120417468] [2022-03-01 17:07:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:33,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:33,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:33,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120417468] [2022-03-01 17:07:33,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120417468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:33,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:33,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:33,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177986126] [2022-03-01 17:07:33,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:33,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:33,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:33,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:33,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:33,921 INFO L87 Difference]: Start difference. First operand 1470 states and 5863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:33,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:33,990 INFO L93 Difference]: Finished difference Result 2847 states and 10564 transitions. [2022-03-01 17:07:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:33,995 INFO L225 Difference]: With dead ends: 2847 [2022-03-01 17:07:33,995 INFO L226 Difference]: Without dead ends: 2688 [2022-03-01 17:07:33,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:33,996 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:33,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:33,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2688 states. [2022-03-01 17:07:34,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2688 to 1486. [2022-03-01 17:07:34,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9804713804713803) internal successors, (5911), 1485 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5911 transitions. [2022-03-01 17:07:34,021 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5911 transitions. Word has length 25 [2022-03-01 17:07:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:34,022 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5911 transitions. [2022-03-01 17:07:34,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5911 transitions. [2022-03-01 17:07:34,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:34,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:34,024 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] [2022-03-01 17:07:34,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 17:07:34,024 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:34,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:34,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1763104943, now seen corresponding path program 76 times [2022-03-01 17:07:34,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:34,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099784154] [2022-03-01 17:07:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:34,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:34,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:34,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:34,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099784154] [2022-03-01 17:07:34,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099784154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:34,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:34,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:34,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122486054] [2022-03-01 17:07:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:34,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:34,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:34,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:34,149 INFO L87 Difference]: Start difference. First operand 1486 states and 5911 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:34,278 INFO L93 Difference]: Finished difference Result 2875 states and 10652 transitions. [2022-03-01 17:07:34,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:34,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:34,285 INFO L225 Difference]: With dead ends: 2875 [2022-03-01 17:07:34,285 INFO L226 Difference]: Without dead ends: 2672 [2022-03-01 17:07:34,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:34,285 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 91 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 184 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 [2022-03-01 17:07:34,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 184 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:34,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-03-01 17:07:34,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1470. [2022-03-01 17:07:34,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9857045609257997) internal successors, (5855), 1469 states have internal predecessors, (5855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5855 transitions. [2022-03-01 17:07:34,313 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5855 transitions. Word has length 25 [2022-03-01 17:07:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:34,313 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5855 transitions. [2022-03-01 17:07:34,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5855 transitions. [2022-03-01 17:07:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:34,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:34,316 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] [2022-03-01 17:07:34,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 17:07:34,317 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:34,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:34,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1354240973, now seen corresponding path program 77 times [2022-03-01 17:07:34,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:34,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108404150] [2022-03-01 17:07:34,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:34,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:34,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:34,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108404150] [2022-03-01 17:07:34,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108404150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:34,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:34,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:34,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201981080] [2022-03-01 17:07:34,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:34,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:34,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:34,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:34,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:34,440 INFO L87 Difference]: Start difference. First operand 1470 states and 5855 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:34,539 INFO L93 Difference]: Finished difference Result 2921 states and 10833 transitions. [2022-03-01 17:07:34,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:34,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:34,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:34,546 INFO L225 Difference]: With dead ends: 2921 [2022-03-01 17:07:34,546 INFO L226 Difference]: Without dead ends: 2732 [2022-03-01 17:07:34,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:34,547 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:34,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 146 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:34,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-03-01 17:07:34,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1500. [2022-03-01 17:07:34,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.9679786524349567) internal successors, (5948), 1499 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5948 transitions. [2022-03-01 17:07:34,578 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5948 transitions. Word has length 25 [2022-03-01 17:07:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:34,578 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5948 transitions. [2022-03-01 17:07:34,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5948 transitions. [2022-03-01 17:07:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:34,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:34,582 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] [2022-03-01 17:07:34,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 17:07:34,582 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash 897389329, now seen corresponding path program 78 times [2022-03-01 17:07:34,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:34,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346937649] [2022-03-01 17:07:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:34,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:34,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346937649] [2022-03-01 17:07:34,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346937649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:34,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:34,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:34,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158099623] [2022-03-01 17:07:34,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:34,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:34,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:34,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:34,730 INFO L87 Difference]: Start difference. First operand 1500 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:34,853 INFO L93 Difference]: Finished difference Result 2919 states and 10798 transitions. [2022-03-01 17:07:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:34,854 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:34,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:34,860 INFO L225 Difference]: With dead ends: 2919 [2022-03-01 17:07:34,860 INFO L226 Difference]: Without dead ends: 2694 [2022-03-01 17:07:34,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:34,860 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:34,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 146 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:34,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-03-01 17:07:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1462. [2022-03-01 17:07:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9911019849418206) internal successors, (5831), 1461 states have internal predecessors, (5831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5831 transitions. [2022-03-01 17:07:34,887 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5831 transitions. Word has length 25 [2022-03-01 17:07:34,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:34,887 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5831 transitions. [2022-03-01 17:07:34,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5831 transitions. [2022-03-01 17:07:34,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:34,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:34,890 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] [2022-03-01 17:07:34,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 17:07:34,890 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:34,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:34,890 INFO L85 PathProgramCache]: Analyzing trace with hash -38400303, now seen corresponding path program 79 times [2022-03-01 17:07:34,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:34,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175061219] [2022-03-01 17:07:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:34,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:35,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:35,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175061219] [2022-03-01 17:07:35,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175061219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:35,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:35,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:35,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314441979] [2022-03-01 17:07:35,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:35,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:35,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:35,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:35,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:35,010 INFO L87 Difference]: Start difference. First operand 1462 states and 5831 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:35,117 INFO L93 Difference]: Finished difference Result 2843 states and 10554 transitions. [2022-03-01 17:07:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:35,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:35,124 INFO L225 Difference]: With dead ends: 2843 [2022-03-01 17:07:35,124 INFO L226 Difference]: Without dead ends: 2684 [2022-03-01 17:07:35,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:35,125 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:35,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 152 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-01 17:07:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1486. [2022-03-01 17:07:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.983164983164983) internal successors, (5915), 1485 states have internal predecessors, (5915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5915 transitions. [2022-03-01 17:07:35,158 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5915 transitions. Word has length 25 [2022-03-01 17:07:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:35,159 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5915 transitions. [2022-03-01 17:07:35,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5915 transitions. [2022-03-01 17:07:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:35,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:35,161 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] [2022-03-01 17:07:35,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 17:07:35,162 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:35,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:35,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1628335053, now seen corresponding path program 80 times [2022-03-01 17:07:35,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:35,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777980296] [2022-03-01 17:07:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:35,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:35,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:35,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777980296] [2022-03-01 17:07:35,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777980296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:35,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:35,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:35,289 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448796890] [2022-03-01 17:07:35,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:35,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:35,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:35,289 INFO L87 Difference]: Start difference. First operand 1486 states and 5915 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:35,416 INFO L93 Difference]: Finished difference Result 2873 states and 10647 transitions. [2022-03-01 17:07:35,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:35,422 INFO L225 Difference]: With dead ends: 2873 [2022-03-01 17:07:35,422 INFO L226 Difference]: Without dead ends: 2668 [2022-03-01 17:07:35,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:35,423 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:35,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:35,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2022-03-01 17:07:35,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1470. [2022-03-01 17:07:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.988427501701838) internal successors, (5859), 1469 states have internal predecessors, (5859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5859 transitions. [2022-03-01 17:07:35,451 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5859 transitions. Word has length 25 [2022-03-01 17:07:35,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:35,451 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5859 transitions. [2022-03-01 17:07:35,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5859 transitions. [2022-03-01 17:07:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:35,453 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:35,453 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] [2022-03-01 17:07:35,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 17:07:35,453 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:35,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:35,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1726646575, now seen corresponding path program 81 times [2022-03-01 17:07:35,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:35,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248914192] [2022-03-01 17:07:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:35,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:35,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:35,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248914192] [2022-03-01 17:07:35,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248914192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:35,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:35,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:35,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624389627] [2022-03-01 17:07:35,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:35,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:35,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:35,582 INFO L87 Difference]: Start difference. First operand 1470 states and 5859 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:35,666 INFO L93 Difference]: Finished difference Result 2837 states and 10529 transitions. [2022-03-01 17:07:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:35,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:35,674 INFO L225 Difference]: With dead ends: 2837 [2022-03-01 17:07:35,674 INFO L226 Difference]: Without dead ends: 2678 [2022-03-01 17:07:35,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:35,675 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:35,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:35,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-03-01 17:07:35,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1486. [2022-03-01 17:07:35,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.977777777777778) internal successors, (5907), 1485 states have internal predecessors, (5907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5907 transitions. [2022-03-01 17:07:35,716 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5907 transitions. Word has length 25 [2022-03-01 17:07:35,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:35,716 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5907 transitions. [2022-03-01 17:07:35,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5907 transitions. [2022-03-01 17:07:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:35,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:35,719 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] [2022-03-01 17:07:35,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 17:07:35,720 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:35,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:35,720 INFO L85 PathProgramCache]: Analyzing trace with hash -46149935, now seen corresponding path program 82 times [2022-03-01 17:07:35,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:35,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245529230] [2022-03-01 17:07:35,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:35,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:35,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:35,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245529230] [2022-03-01 17:07:35,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245529230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:35,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:35,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:35,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735556921] [2022-03-01 17:07:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:35,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:35,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:35,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:35,873 INFO L87 Difference]: Start difference. First operand 1486 states and 5907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:35,994 INFO L93 Difference]: Finished difference Result 2861 states and 10605 transitions. [2022-03-01 17:07:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:35,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:35,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:36,002 INFO L225 Difference]: With dead ends: 2861 [2022-03-01 17:07:36,002 INFO L226 Difference]: Without dead ends: 2662 [2022-03-01 17:07:36,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:36,002 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:36,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 153 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2022-03-01 17:07:36,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1470. [2022-03-01 17:07:36,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.982981620149762) internal successors, (5851), 1469 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5851 transitions. [2022-03-01 17:07:36,033 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5851 transitions. Word has length 25 [2022-03-01 17:07:36,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:36,033 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5851 transitions. [2022-03-01 17:07:36,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5851 transitions. [2022-03-01 17:07:36,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:36,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:36,036 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] [2022-03-01 17:07:36,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 17:07:36,036 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:36,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:36,037 INFO L85 PathProgramCache]: Analyzing trace with hash -309484621, now seen corresponding path program 83 times [2022-03-01 17:07:36,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:36,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591779498] [2022-03-01 17:07:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:36,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:36,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591779498] [2022-03-01 17:07:36,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591779498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:36,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:36,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:36,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38225590] [2022-03-01 17:07:36,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:36,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:36,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:36,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:36,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:36,166 INFO L87 Difference]: Start difference. First operand 1470 states and 5851 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:36,288 INFO L93 Difference]: Finished difference Result 2909 states and 10791 transitions. [2022-03-01 17:07:36,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:36,288 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:36,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:36,295 INFO L225 Difference]: With dead ends: 2909 [2022-03-01 17:07:36,295 INFO L226 Difference]: Without dead ends: 2720 [2022-03-01 17:07:36,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:36,295 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:36,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:36,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-03-01 17:07:36,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1498. [2022-03-01 17:07:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.967267869071476) internal successors, (5939), 1497 states have internal predecessors, (5939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5939 transitions. [2022-03-01 17:07:36,325 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5939 transitions. Word has length 25 [2022-03-01 17:07:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:36,325 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5939 transitions. [2022-03-01 17:07:36,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5939 transitions. [2022-03-01 17:07:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:36,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:36,328 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] [2022-03-01 17:07:36,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-01 17:07:36,328 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:36,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1701629167, now seen corresponding path program 84 times [2022-03-01 17:07:36,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:36,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882791387] [2022-03-01 17:07:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:36,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:36,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882791387] [2022-03-01 17:07:36,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882791387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:36,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:36,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:36,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473936288] [2022-03-01 17:07:36,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:36,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:36,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:36,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:36,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:36,429 INFO L87 Difference]: Start difference. First operand 1498 states and 5939 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:36,534 INFO L93 Difference]: Finished difference Result 2903 states and 10746 transitions. [2022-03-01 17:07:36,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:36,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:36,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:36,540 INFO L225 Difference]: With dead ends: 2903 [2022-03-01 17:07:36,540 INFO L226 Difference]: Without dead ends: 2684 [2022-03-01 17:07:36,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:36,545 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 94 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:36,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 170 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-01 17:07:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1462. [2022-03-01 17:07:36,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9883641341546885) internal successors, (5827), 1461 states have internal predecessors, (5827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5827 transitions. [2022-03-01 17:07:36,575 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5827 transitions. Word has length 25 [2022-03-01 17:07:36,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:36,575 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5827 transitions. [2022-03-01 17:07:36,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5827 transitions. [2022-03-01 17:07:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:36,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:36,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:36,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-01 17:07:36,578 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:36,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:36,578 INFO L85 PathProgramCache]: Analyzing trace with hash 349604659, now seen corresponding path program 85 times [2022-03-01 17:07:36,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:36,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567868396] [2022-03-01 17:07:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:36,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:36,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:36,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567868396] [2022-03-01 17:07:36,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567868396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:36,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:36,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:36,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707428066] [2022-03-01 17:07:36,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:36,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:36,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:36,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:36,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:36,708 INFO L87 Difference]: Start difference. First operand 1462 states and 5827 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:36,808 INFO L93 Difference]: Finished difference Result 2839 states and 10540 transitions. [2022-03-01 17:07:36,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:36,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:36,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:36,814 INFO L225 Difference]: With dead ends: 2839 [2022-03-01 17:07:36,815 INFO L226 Difference]: Without dead ends: 2680 [2022-03-01 17:07:36,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:36,815 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:36,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 169 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:36,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-01 17:07:36,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1486. [2022-03-01 17:07:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9804713804713803) internal successors, (5911), 1485 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5911 transitions. [2022-03-01 17:07:36,844 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5911 transitions. Word has length 25 [2022-03-01 17:07:36,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:36,844 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5911 transitions. [2022-03-01 17:07:36,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5911 transitions. [2022-03-01 17:07:36,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:36,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:36,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:36,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-01 17:07:36,847 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1357902643, now seen corresponding path program 86 times [2022-03-01 17:07:36,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:36,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532434048] [2022-03-01 17:07:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:36,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:36,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:36,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:36,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532434048] [2022-03-01 17:07:36,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532434048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:36,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:36,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:36,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641635265] [2022-03-01 17:07:36,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:36,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:36,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:36,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:36,996 INFO L87 Difference]: Start difference. First operand 1486 states and 5911 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:37,099 INFO L93 Difference]: Finished difference Result 2867 states and 10628 transitions. [2022-03-01 17:07:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:37,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:37,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:37,106 INFO L225 Difference]: With dead ends: 2867 [2022-03-01 17:07:37,106 INFO L226 Difference]: Without dead ends: 2664 [2022-03-01 17:07:37,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:37,107 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:37,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 177 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:37,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2022-03-01 17:07:37,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1470. [2022-03-01 17:07:37,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9857045609257997) internal successors, (5855), 1469 states have internal predecessors, (5855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5855 transitions. [2022-03-01 17:07:37,137 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5855 transitions. Word has length 25 [2022-03-01 17:07:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:37,137 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5855 transitions. [2022-03-01 17:07:37,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5855 transitions. [2022-03-01 17:07:37,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:37,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:37,139 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] [2022-03-01 17:07:37,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-01 17:07:37,140 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:37,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:37,140 INFO L85 PathProgramCache]: Analyzing trace with hash -497192303, now seen corresponding path program 87 times [2022-03-01 17:07:37,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:37,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620243001] [2022-03-01 17:07:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:37,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:37,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:37,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620243001] [2022-03-01 17:07:37,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620243001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:37,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:37,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:37,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996894098] [2022-03-01 17:07:37,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:37,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:37,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:37,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:37,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:37,243 INFO L87 Difference]: Start difference. First operand 1470 states and 5855 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:37,315 INFO L93 Difference]: Finished difference Result 2835 states and 10520 transitions. [2022-03-01 17:07:37,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:37,315 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:37,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:37,322 INFO L225 Difference]: With dead ends: 2835 [2022-03-01 17:07:37,322 INFO L226 Difference]: Without dead ends: 2676 [2022-03-01 17:07:37,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:37,322 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:37,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 146 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-03-01 17:07:37,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 1486. [2022-03-01 17:07:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.975084175084175) internal successors, (5903), 1485 states have internal predecessors, (5903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5903 transitions. [2022-03-01 17:07:37,353 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5903 transitions. Word has length 25 [2022-03-01 17:07:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:37,354 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5903 transitions. [2022-03-01 17:07:37,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5903 transitions. [2022-03-01 17:07:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:37,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:37,356 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] [2022-03-01 17:07:37,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-01 17:07:37,356 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:37,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash -527051981, now seen corresponding path program 88 times [2022-03-01 17:07:37,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:37,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816465604] [2022-03-01 17:07:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:37,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:37,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:37,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816465604] [2022-03-01 17:07:37,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816465604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:37,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:37,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:37,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728678716] [2022-03-01 17:07:37,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:37,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:37,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:37,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:37,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:37,464 INFO L87 Difference]: Start difference. First operand 1486 states and 5903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:37,568 INFO L93 Difference]: Finished difference Result 2859 states and 10596 transitions. [2022-03-01 17:07:37,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:37,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:37,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:37,575 INFO L225 Difference]: With dead ends: 2859 [2022-03-01 17:07:37,575 INFO L226 Difference]: Without dead ends: 2660 [2022-03-01 17:07:37,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:37,579 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:37,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 160 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2022-03-01 17:07:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 1470. [2022-03-01 17:07:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9802586793737236) internal successors, (5847), 1469 states have internal predecessors, (5847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5847 transitions. [2022-03-01 17:07:37,608 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5847 transitions. Word has length 25 [2022-03-01 17:07:37,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:37,608 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5847 transitions. [2022-03-01 17:07:37,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5847 transitions. [2022-03-01 17:07:37,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:37,610 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:37,610 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] [2022-03-01 17:07:37,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-01 17:07:37,610 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:37,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1407470387, now seen corresponding path program 89 times [2022-03-01 17:07:37,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:37,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578083642] [2022-03-01 17:07:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:37,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:37,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:37,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578083642] [2022-03-01 17:07:37,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578083642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:37,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:37,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:37,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982142596] [2022-03-01 17:07:37,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:37,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:37,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:37,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:37,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:37,779 INFO L87 Difference]: Start difference. First operand 1470 states and 5847 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:37,898 INFO L93 Difference]: Finished difference Result 2903 states and 10772 transitions. [2022-03-01 17:07:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:37,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:37,905 INFO L225 Difference]: With dead ends: 2903 [2022-03-01 17:07:37,905 INFO L226 Difference]: Without dead ends: 2716 [2022-03-01 17:07:37,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:37,906 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 95 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:37,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 162 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-03-01 17:07:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1498. [2022-03-01 17:07:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.9645958583834333) internal successors, (5935), 1497 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5935 transitions. [2022-03-01 17:07:37,934 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5935 transitions. Word has length 25 [2022-03-01 17:07:37,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:37,934 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5935 transitions. [2022-03-01 17:07:37,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5935 transitions. [2022-03-01 17:07:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:37,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:37,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:37,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-01 17:07:37,937 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:37,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash -635866607, now seen corresponding path program 90 times [2022-03-01 17:07:37,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:37,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662912273] [2022-03-01 17:07:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:37,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:38,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:38,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662912273] [2022-03-01 17:07:38,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662912273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:38,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:38,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:38,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021488976] [2022-03-01 17:07:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:38,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:38,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:38,071 INFO L87 Difference]: Start difference. First operand 1498 states and 5935 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:38,201 INFO L93 Difference]: Finished difference Result 2899 states and 10732 transitions. [2022-03-01 17:07:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:38,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:38,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:38,208 INFO L225 Difference]: With dead ends: 2899 [2022-03-01 17:07:38,209 INFO L226 Difference]: Without dead ends: 2680 [2022-03-01 17:07:38,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:38,209 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:38,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 151 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:38,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-01 17:07:38,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1462. [2022-03-01 17:07:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9856262833675564) internal successors, (5823), 1461 states have internal predecessors, (5823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5823 transitions. [2022-03-01 17:07:38,237 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5823 transitions. Word has length 25 [2022-03-01 17:07:38,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:38,237 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5823 transitions. [2022-03-01 17:07:38,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5823 transitions. [2022-03-01 17:07:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:38,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:38,239 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] [2022-03-01 17:07:38,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-01 17:07:38,239 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:38,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:38,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1073708949, now seen corresponding path program 91 times [2022-03-01 17:07:38,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:38,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116487720] [2022-03-01 17:07:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:38,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:38,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116487720] [2022-03-01 17:07:38,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116487720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:38,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:38,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:38,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874470897] [2022-03-01 17:07:38,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:38,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:38,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:38,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:38,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:38,357 INFO L87 Difference]: Start difference. First operand 1462 states and 5823 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:38,469 INFO L93 Difference]: Finished difference Result 2975 states and 11062 transitions. [2022-03-01 17:07:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:38,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:38,477 INFO L225 Difference]: With dead ends: 2975 [2022-03-01 17:07:38,477 INFO L226 Difference]: Without dead ends: 2786 [2022-03-01 17:07:38,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:38,477 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:38,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 156 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:38,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-03-01 17:07:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1506. [2022-03-01 17:07:38,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.9740863787375416) internal successors, (5981), 1505 states have internal predecessors, (5981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5981 transitions. [2022-03-01 17:07:38,507 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5981 transitions. Word has length 25 [2022-03-01 17:07:38,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:38,507 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5981 transitions. [2022-03-01 17:07:38,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5981 transitions. [2022-03-01 17:07:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:38,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:38,509 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] [2022-03-01 17:07:38,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-01 17:07:38,510 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -969628045, now seen corresponding path program 92 times [2022-03-01 17:07:38,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:38,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668208331] [2022-03-01 17:07:38,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:38,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:38,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:38,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668208331] [2022-03-01 17:07:38,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668208331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:38,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:38,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:38,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710413798] [2022-03-01 17:07:38,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:38,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:38,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:38,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:38,642 INFO L87 Difference]: Start difference. First operand 1506 states and 5981 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:38,755 INFO L93 Difference]: Finished difference Result 2973 states and 11027 transitions. [2022-03-01 17:07:38,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:38,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:38,762 INFO L225 Difference]: With dead ends: 2973 [2022-03-01 17:07:38,762 INFO L226 Difference]: Without dead ends: 2756 [2022-03-01 17:07:38,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:38,763 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 101 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:38,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 156 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:38,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2022-03-01 17:07:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1476. [2022-03-01 17:07:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.982372881355932) internal successors, (5874), 1475 states have internal predecessors, (5874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5874 transitions. [2022-03-01 17:07:38,794 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5874 transitions. Word has length 25 [2022-03-01 17:07:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:38,794 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5874 transitions. [2022-03-01 17:07:38,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5874 transitions. [2022-03-01 17:07:38,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:38,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:38,797 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] [2022-03-01 17:07:38,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-01 17:07:38,797 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:38,797 INFO L85 PathProgramCache]: Analyzing trace with hash 226911987, now seen corresponding path program 93 times [2022-03-01 17:07:38,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:38,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979744909] [2022-03-01 17:07:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:38,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:38,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:38,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979744909] [2022-03-01 17:07:38,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979744909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:38,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:38,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:38,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192703349] [2022-03-01 17:07:38,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:38,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:38,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:38,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:38,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:38,898 INFO L87 Difference]: Start difference. First operand 1476 states and 5874 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:38,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:38,987 INFO L93 Difference]: Finished difference Result 2969 states and 11029 transitions. [2022-03-01 17:07:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:38,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:38,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:38,993 INFO L225 Difference]: With dead ends: 2969 [2022-03-01 17:07:38,993 INFO L226 Difference]: Without dead ends: 2780 [2022-03-01 17:07:38,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:38,994 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:38,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 165 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:38,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-03-01 17:07:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 1504. [2022-03-01 17:07:39,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 3.9667332002661344) internal successors, (5962), 1503 states have internal predecessors, (5962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5962 transitions. [2022-03-01 17:07:39,022 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5962 transitions. Word has length 25 [2022-03-01 17:07:39,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:39,022 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5962 transitions. [2022-03-01 17:07:39,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5962 transitions. [2022-03-01 17:07:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:39,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:39,025 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] [2022-03-01 17:07:39,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-01 17:07:39,025 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:39,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1419378419, now seen corresponding path program 94 times [2022-03-01 17:07:39,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:39,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658958341] [2022-03-01 17:07:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:39,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:39,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:39,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658958341] [2022-03-01 17:07:39,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658958341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:39,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:39,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:39,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111395423] [2022-03-01 17:07:39,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:39,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:39,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:39,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:39,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:39,102 INFO L87 Difference]: Start difference. First operand 1504 states and 5962 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:39,209 INFO L93 Difference]: Finished difference Result 2963 states and 10984 transitions. [2022-03-01 17:07:39,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:39,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:39,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:39,216 INFO L225 Difference]: With dead ends: 2963 [2022-03-01 17:07:39,216 INFO L226 Difference]: Without dead ends: 2752 [2022-03-01 17:07:39,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:39,217 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:39,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 158 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:39,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2022-03-01 17:07:39,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 1476. [2022-03-01 17:07:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.9728813559322034) internal successors, (5860), 1475 states have internal predecessors, (5860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5860 transitions. [2022-03-01 17:07:39,249 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5860 transitions. Word has length 25 [2022-03-01 17:07:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:39,250 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5860 transitions. [2022-03-01 17:07:39,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5860 transitions. [2022-03-01 17:07:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:39,252 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:39,252 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] [2022-03-01 17:07:39,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-01 17:07:39,252 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:39,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1209259601, now seen corresponding path program 95 times [2022-03-01 17:07:39,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:39,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859122029] [2022-03-01 17:07:39,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:39,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:39,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:39,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859122029] [2022-03-01 17:07:39,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859122029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:39,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:39,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:39,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593865342] [2022-03-01 17:07:39,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:39,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:39,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:39,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:39,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:39,375 INFO L87 Difference]: Start difference. First operand 1476 states and 5860 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:39,489 INFO L93 Difference]: Finished difference Result 2965 states and 11005 transitions. [2022-03-01 17:07:39,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:39,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:39,496 INFO L225 Difference]: With dead ends: 2965 [2022-03-01 17:07:39,496 INFO L226 Difference]: Without dead ends: 2778 [2022-03-01 17:07:39,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:39,497 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:39,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 156 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:39,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-03-01 17:07:39,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 1504. [2022-03-01 17:07:39,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 3.9574184963406522) internal successors, (5948), 1503 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5948 transitions. [2022-03-01 17:07:39,529 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5948 transitions. Word has length 25 [2022-03-01 17:07:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:39,529 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5948 transitions. [2022-03-01 17:07:39,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5948 transitions. [2022-03-01 17:07:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:39,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:39,532 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] [2022-03-01 17:07:39,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-01 17:07:39,532 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:39,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2004645069, now seen corresponding path program 96 times [2022-03-01 17:07:39,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:39,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864239766] [2022-03-01 17:07:39,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:39,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:39,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864239766] [2022-03-01 17:07:39,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864239766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:39,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:39,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:39,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687521219] [2022-03-01 17:07:39,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:39,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:39,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:39,639 INFO L87 Difference]: Start difference. First operand 1504 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:39,748 INFO L93 Difference]: Finished difference Result 2961 states and 10965 transitions. [2022-03-01 17:07:39,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:39,748 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:39,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:39,755 INFO L225 Difference]: With dead ends: 2961 [2022-03-01 17:07:39,755 INFO L226 Difference]: Without dead ends: 2732 [2022-03-01 17:07:39,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:39,756 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:39,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-03-01 17:07:39,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 1458. [2022-03-01 17:07:39,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9897048730267675) internal successors, (5813), 1457 states have internal predecessors, (5813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5813 transitions. [2022-03-01 17:07:39,787 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5813 transitions. Word has length 25 [2022-03-01 17:07:39,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:39,787 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5813 transitions. [2022-03-01 17:07:39,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:39,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5813 transitions. [2022-03-01 17:07:39,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:39,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:39,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:39,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-01 17:07:39,789 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash -894688137, now seen corresponding path program 97 times [2022-03-01 17:07:39,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:39,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440028107] [2022-03-01 17:07:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:39,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:39,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:39,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440028107] [2022-03-01 17:07:39,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440028107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:39,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:39,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:39,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274899602] [2022-03-01 17:07:39,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:39,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:39,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:39,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:39,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:39,925 INFO L87 Difference]: Start difference. First operand 1458 states and 5813 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:40,025 INFO L93 Difference]: Finished difference Result 3229 states and 12055 transitions. [2022-03-01 17:07:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:40,033 INFO L225 Difference]: With dead ends: 3229 [2022-03-01 17:07:40,033 INFO L226 Difference]: Without dead ends: 3040 [2022-03-01 17:07:40,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:40,034 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:40,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 143 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:40,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2022-03-01 17:07:40,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 1525. [2022-03-01 17:07:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 3.9783464566929134) internal successors, (6063), 1524 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 6063 transitions. [2022-03-01 17:07:40,065 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 6063 transitions. Word has length 25 [2022-03-01 17:07:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:40,065 INFO L470 AbstractCegarLoop]: Abstraction has 1525 states and 6063 transitions. [2022-03-01 17:07:40,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 6063 transitions. [2022-03-01 17:07:40,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:40,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:40,068 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] [2022-03-01 17:07:40,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-01 17:07:40,068 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:40,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1356942165, now seen corresponding path program 98 times [2022-03-01 17:07:40,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:40,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372056403] [2022-03-01 17:07:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:40,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:40,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:40,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372056403] [2022-03-01 17:07:40,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372056403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:40,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:40,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:40,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134086911] [2022-03-01 17:07:40,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:40,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:40,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:40,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:40,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:40,176 INFO L87 Difference]: Start difference. First operand 1525 states and 6063 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:40,255 INFO L93 Difference]: Finished difference Result 3227 states and 12020 transitions. [2022-03-01 17:07:40,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:40,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:40,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:40,262 INFO L225 Difference]: With dead ends: 3227 [2022-03-01 17:07:40,262 INFO L226 Difference]: Without dead ends: 3010 [2022-03-01 17:07:40,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:40,263 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 114 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:40,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 136 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2022-03-01 17:07:40,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 1495. [2022-03-01 17:07:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1494 states have (on average 3.9866131191432395) internal successors, (5956), 1494 states have internal predecessors, (5956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 5956 transitions. [2022-03-01 17:07:40,296 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 5956 transitions. Word has length 25 [2022-03-01 17:07:40,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:40,296 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 5956 transitions. [2022-03-01 17:07:40,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 5956 transitions. [2022-03-01 17:07:40,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:40,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:40,299 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] [2022-03-01 17:07:40,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-01 17:07:40,299 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1741485099, now seen corresponding path program 99 times [2022-03-01 17:07:40,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:40,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075925812] [2022-03-01 17:07:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:40,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:40,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:40,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075925812] [2022-03-01 17:07:40,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075925812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:40,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:40,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:40,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851830213] [2022-03-01 17:07:40,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:40,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:40,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:40,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:40,378 INFO L87 Difference]: Start difference. First operand 1495 states and 5956 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:40,462 INFO L93 Difference]: Finished difference Result 3223 states and 12022 transitions. [2022-03-01 17:07:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:40,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:40,470 INFO L225 Difference]: With dead ends: 3223 [2022-03-01 17:07:40,470 INFO L226 Difference]: Without dead ends: 3034 [2022-03-01 17:07:40,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:40,474 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:40,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2022-03-01 17:07:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 1523. [2022-03-01 17:07:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.971090670170828) internal successors, (6044), 1522 states have internal predecessors, (6044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 6044 transitions. [2022-03-01 17:07:40,509 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 6044 transitions. Word has length 25 [2022-03-01 17:07:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:40,509 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 6044 transitions. [2022-03-01 17:07:40,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 6044 transitions. [2022-03-01 17:07:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:40,511 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:40,511 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] [2022-03-01 17:07:40,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-01 17:07:40,512 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash -549018667, now seen corresponding path program 100 times [2022-03-01 17:07:40,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:40,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145955792] [2022-03-01 17:07:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:40,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:40,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145955792] [2022-03-01 17:07:40,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145955792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:40,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:40,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:40,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180426040] [2022-03-01 17:07:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:40,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:40,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:40,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:40,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:40,622 INFO L87 Difference]: Start difference. First operand 1523 states and 6044 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:40,745 INFO L93 Difference]: Finished difference Result 3217 states and 11977 transitions. [2022-03-01 17:07:40,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:40,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:40,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:40,753 INFO L225 Difference]: With dead ends: 3217 [2022-03-01 17:07:40,753 INFO L226 Difference]: Without dead ends: 3006 [2022-03-01 17:07:40,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:40,753 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 97 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:40,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:40,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2022-03-01 17:07:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 1495. [2022-03-01 17:07:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1494 states have (on average 3.9772423025435075) internal successors, (5942), 1494 states have internal predecessors, (5942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 5942 transitions. [2022-03-01 17:07:40,785 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 5942 transitions. Word has length 25 [2022-03-01 17:07:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:40,785 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 5942 transitions. [2022-03-01 17:07:40,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 5942 transitions. [2022-03-01 17:07:40,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:40,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:40,787 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] [2022-03-01 17:07:40,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-01 17:07:40,788 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:40,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:40,788 INFO L85 PathProgramCache]: Analyzing trace with hash -759137485, now seen corresponding path program 101 times [2022-03-01 17:07:40,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:40,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103608458] [2022-03-01 17:07:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:40,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:40,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:40,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103608458] [2022-03-01 17:07:40,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103608458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:40,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:40,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:40,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133786686] [2022-03-01 17:07:40,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:40,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:40,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:40,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:40,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:40,910 INFO L87 Difference]: Start difference. First operand 1495 states and 5942 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:41,022 INFO L93 Difference]: Finished difference Result 3219 states and 11998 transitions. [2022-03-01 17:07:41,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:41,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:41,029 INFO L225 Difference]: With dead ends: 3219 [2022-03-01 17:07:41,030 INFO L226 Difference]: Without dead ends: 3032 [2022-03-01 17:07:41,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:41,030 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 105 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:41,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:41,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-03-01 17:07:41,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1523. [2022-03-01 17:07:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1522 states have (on average 3.961892247043364) internal successors, (6030), 1522 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 6030 transitions. [2022-03-01 17:07:41,061 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 6030 transitions. Word has length 25 [2022-03-01 17:07:41,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:41,062 INFO L470 AbstractCegarLoop]: Abstraction has 1523 states and 6030 transitions. [2022-03-01 17:07:41,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 6030 transitions. [2022-03-01 17:07:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:41,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:41,064 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] [2022-03-01 17:07:41,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-01 17:07:41,064 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:41,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:41,064 INFO L85 PathProgramCache]: Analyzing trace with hash 321925141, now seen corresponding path program 102 times [2022-03-01 17:07:41,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:41,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985710523] [2022-03-01 17:07:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:41,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:41,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:41,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985710523] [2022-03-01 17:07:41,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985710523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:41,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:41,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:41,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839039825] [2022-03-01 17:07:41,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:41,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:41,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:41,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:41,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:41,187 INFO L87 Difference]: Start difference. First operand 1523 states and 6030 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:41,307 INFO L93 Difference]: Finished difference Result 3215 states and 11958 transitions. [2022-03-01 17:07:41,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:41,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:41,315 INFO L225 Difference]: With dead ends: 3215 [2022-03-01 17:07:41,315 INFO L226 Difference]: Without dead ends: 2990 [2022-03-01 17:07:41,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:41,315 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 100 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:41,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 147 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2022-03-01 17:07:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 1481. [2022-03-01 17:07:41,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.985135135135135) internal successors, (5898), 1480 states have internal predecessors, (5898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5898 transitions. [2022-03-01 17:07:41,345 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5898 transitions. Word has length 25 [2022-03-01 17:07:41,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:41,345 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5898 transitions. [2022-03-01 17:07:41,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5898 transitions. [2022-03-01 17:07:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:41,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:41,347 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] [2022-03-01 17:07:41,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-01 17:07:41,347 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1426973141, now seen corresponding path program 103 times [2022-03-01 17:07:41,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:41,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938180851] [2022-03-01 17:07:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:41,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:41,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938180851] [2022-03-01 17:07:41,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938180851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:41,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:41,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:41,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101480433] [2022-03-01 17:07:41,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:41,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:41,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:41,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:41,477 INFO L87 Difference]: Start difference. First operand 1481 states and 5898 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:41,599 INFO L93 Difference]: Finished difference Result 3346 states and 12460 transitions. [2022-03-01 17:07:41,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:41,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:41,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:41,607 INFO L225 Difference]: With dead ends: 3346 [2022-03-01 17:07:41,608 INFO L226 Difference]: Without dead ends: 3157 [2022-03-01 17:07:41,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:41,608 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 99 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 179 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 [2022-03-01 17:07:41,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 179 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:41,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2022-03-01 17:07:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 1550. [2022-03-01 17:07:41,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.9664299548095547) internal successors, (6144), 1549 states have internal predecessors, (6144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 6144 transitions. [2022-03-01 17:07:41,660 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 6144 transitions. Word has length 25 [2022-03-01 17:07:41,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:41,660 INFO L470 AbstractCegarLoop]: Abstraction has 1550 states and 6144 transitions. [2022-03-01 17:07:41,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 6144 transitions. [2022-03-01 17:07:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:41,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:41,663 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] [2022-03-01 17:07:41,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-01 17:07:41,663 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:41,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash -616363853, now seen corresponding path program 104 times [2022-03-01 17:07:41,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:41,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384643539] [2022-03-01 17:07:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:41,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:41,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:41,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384643539] [2022-03-01 17:07:41,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384643539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:41,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:41,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:41,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093158847] [2022-03-01 17:07:41,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:41,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:41,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:41,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:41,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:41,740 INFO L87 Difference]: Start difference. First operand 1550 states and 6144 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:41,860 INFO L93 Difference]: Finished difference Result 3344 states and 12425 transitions. [2022-03-01 17:07:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:41,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:41,868 INFO L225 Difference]: With dead ends: 3344 [2022-03-01 17:07:41,868 INFO L226 Difference]: Without dead ends: 3127 [2022-03-01 17:07:41,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:41,869 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 119 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:41,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 157 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3127 states. [2022-03-01 17:07:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3127 to 1520. [2022-03-01 17:07:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1519 states have (on average 3.9736668861092825) internal successors, (6036), 1519 states have internal predecessors, (6036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 6036 transitions. [2022-03-01 17:07:41,899 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 6036 transitions. Word has length 25 [2022-03-01 17:07:41,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:41,900 INFO L470 AbstractCegarLoop]: Abstraction has 1520 states and 6036 transitions. [2022-03-01 17:07:41,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 6036 transitions. [2022-03-01 17:07:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:41,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:41,902 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] [2022-03-01 17:07:41,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-01 17:07:41,902 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1852713429, now seen corresponding path program 105 times [2022-03-01 17:07:41,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:41,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734369463] [2022-03-01 17:07:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:42,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:42,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734369463] [2022-03-01 17:07:42,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734369463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:42,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:42,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:42,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228686165] [2022-03-01 17:07:42,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:42,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:42,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:42,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:42,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:42,036 INFO L87 Difference]: Start difference. First operand 1520 states and 6036 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:42,169 INFO L93 Difference]: Finished difference Result 3414 states and 12679 transitions. [2022-03-01 17:07:42,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:42,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:42,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:42,177 INFO L225 Difference]: With dead ends: 3414 [2022-03-01 17:07:42,177 INFO L226 Difference]: Without dead ends: 3225 [2022-03-01 17:07:42,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:42,178 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 118 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:42,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 137 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-03-01 17:07:42,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 1583. [2022-03-01 17:07:42,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1582 states have (on average 3.946270543615676) internal successors, (6243), 1582 states have internal predecessors, (6243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 6243 transitions. [2022-03-01 17:07:42,214 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 6243 transitions. Word has length 25 [2022-03-01 17:07:42,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:42,214 INFO L470 AbstractCegarLoop]: Abstraction has 1583 states and 6243 transitions. [2022-03-01 17:07:42,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,214 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 6243 transitions. [2022-03-01 17:07:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:42,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:42,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:42,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-01 17:07:42,217 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:42,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:42,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1296925141, now seen corresponding path program 106 times [2022-03-01 17:07:42,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:42,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228396107] [2022-03-01 17:07:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:42,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:42,337 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:42,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228396107] [2022-03-01 17:07:42,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228396107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:42,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:42,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:42,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474203874] [2022-03-01 17:07:42,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:42,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:42,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:42,338 INFO L87 Difference]: Start difference. First operand 1583 states and 6243 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:42,459 INFO L93 Difference]: Finished difference Result 3447 states and 12762 transitions. [2022-03-01 17:07:42,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:42,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:42,469 INFO L225 Difference]: With dead ends: 3447 [2022-03-01 17:07:42,469 INFO L226 Difference]: Without dead ends: 3162 [2022-03-01 17:07:42,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:42,470 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:42,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 157 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:42,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-03-01 17:07:42,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 1520. [2022-03-01 17:07:42,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1519 states have (on average 3.953258722843976) internal successors, (6005), 1519 states have internal predecessors, (6005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 6005 transitions. [2022-03-01 17:07:42,504 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 6005 transitions. Word has length 25 [2022-03-01 17:07:42,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:42,504 INFO L470 AbstractCegarLoop]: Abstraction has 1520 states and 6005 transitions. [2022-03-01 17:07:42,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 6005 transitions. [2022-03-01 17:07:42,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:42,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:42,507 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] [2022-03-01 17:07:42,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-01 17:07:42,507 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:42,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:42,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1459906253, now seen corresponding path program 107 times [2022-03-01 17:07:42,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:42,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045429910] [2022-03-01 17:07:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:42,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:42,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:42,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045429910] [2022-03-01 17:07:42,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045429910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:42,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:42,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:42,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717332841] [2022-03-01 17:07:42,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:42,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:42,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:42,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:42,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:42,630 INFO L87 Difference]: Start difference. First operand 1520 states and 6005 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:42,751 INFO L93 Difference]: Finished difference Result 3393 states and 12587 transitions. [2022-03-01 17:07:42,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:42,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:42,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:42,759 INFO L225 Difference]: With dead ends: 3393 [2022-03-01 17:07:42,760 INFO L226 Difference]: Without dead ends: 3206 [2022-03-01 17:07:42,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:42,760 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:42,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:42,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2022-03-01 17:07:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 1566. [2022-03-01 17:07:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1565 states have (on average 3.9373801916932907) internal successors, (6162), 1565 states have internal predecessors, (6162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 6162 transitions. [2022-03-01 17:07:42,797 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 6162 transitions. Word has length 25 [2022-03-01 17:07:42,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:42,798 INFO L470 AbstractCegarLoop]: Abstraction has 1566 states and 6162 transitions. [2022-03-01 17:07:42,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 6162 transitions. [2022-03-01 17:07:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:42,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:42,801 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] [2022-03-01 17:07:42,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-01 17:07:42,801 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:42,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash 477671445, now seen corresponding path program 108 times [2022-03-01 17:07:42,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:42,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069482175] [2022-03-01 17:07:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:42,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:42,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069482175] [2022-03-01 17:07:42,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069482175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:42,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:42,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:42,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284452392] [2022-03-01 17:07:42,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:42,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:42,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:42,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:42,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:42,884 INFO L87 Difference]: Start difference. First operand 1566 states and 6162 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:42,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:42,976 INFO L93 Difference]: Finished difference Result 3428 states and 12676 transitions. [2022-03-01 17:07:42,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:42,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:42,983 INFO L225 Difference]: With dead ends: 3428 [2022-03-01 17:07:42,984 INFO L226 Difference]: Without dead ends: 3121 [2022-03-01 17:07:42,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:42,984 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 177 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 [2022-03-01 17:07:42,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 177 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2022-03-01 17:07:43,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 1481. [2022-03-01 17:07:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.972297297297297) internal successors, (5879), 1480 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5879 transitions. [2022-03-01 17:07:43,016 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5879 transitions. Word has length 25 [2022-03-01 17:07:43,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:43,016 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5879 transitions. [2022-03-01 17:07:43,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5879 transitions. [2022-03-01 17:07:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:43,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:43,018 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] [2022-03-01 17:07:43,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-01 17:07:43,018 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:43,019 INFO L85 PathProgramCache]: Analyzing trace with hash 570225075, now seen corresponding path program 109 times [2022-03-01 17:07:43,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:43,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456164460] [2022-03-01 17:07:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:43,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:43,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:43,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456164460] [2022-03-01 17:07:43,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456164460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:43,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:43,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:43,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90576236] [2022-03-01 17:07:43,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:43,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:43,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:43,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:43,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:43,104 INFO L87 Difference]: Start difference. First operand 1481 states and 5879 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:43,188 INFO L93 Difference]: Finished difference Result 3323 states and 12372 transitions. [2022-03-01 17:07:43,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:43,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:43,195 INFO L225 Difference]: With dead ends: 3323 [2022-03-01 17:07:43,195 INFO L226 Difference]: Without dead ends: 3134 [2022-03-01 17:07:43,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:43,196 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:43,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 154 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2022-03-01 17:07:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1539. [2022-03-01 17:07:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1538 states have (on average 3.963589076723017) internal successors, (6096), 1538 states have internal predecessors, (6096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 6096 transitions. [2022-03-01 17:07:43,227 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 6096 transitions. Word has length 25 [2022-03-01 17:07:43,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:43,227 INFO L470 AbstractCegarLoop]: Abstraction has 1539 states and 6096 transitions. [2022-03-01 17:07:43,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 6096 transitions. [2022-03-01 17:07:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:43,229 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:43,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:43,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-01 17:07:43,229 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:43,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1762691507, now seen corresponding path program 110 times [2022-03-01 17:07:43,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:43,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628954876] [2022-03-01 17:07:43,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:43,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:43,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:43,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:43,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628954876] [2022-03-01 17:07:43,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628954876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:43,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:43,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:43,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318590527] [2022-03-01 17:07:43,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:43,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:43,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:43,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:43,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:43,335 INFO L87 Difference]: Start difference. First operand 1539 states and 6096 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:43,445 INFO L93 Difference]: Finished difference Result 3317 states and 12327 transitions. [2022-03-01 17:07:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:43,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:43,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:43,454 INFO L225 Difference]: With dead ends: 3317 [2022-03-01 17:07:43,454 INFO L226 Difference]: Without dead ends: 3106 [2022-03-01 17:07:43,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:43,454 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 107 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:43,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 148 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:43,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2022-03-01 17:07:43,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 1511. [2022-03-01 17:07:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.9695364238410598) internal successors, (5994), 1510 states have internal predecessors, (5994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5994 transitions. [2022-03-01 17:07:43,490 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5994 transitions. Word has length 25 [2022-03-01 17:07:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:43,491 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5994 transitions. [2022-03-01 17:07:43,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5994 transitions. [2022-03-01 17:07:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:43,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:43,494 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] [2022-03-01 17:07:43,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-01 17:07:43,494 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:43,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:43,494 INFO L85 PathProgramCache]: Analyzing trace with hash -740355947, now seen corresponding path program 111 times [2022-03-01 17:07:43,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:43,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066146233] [2022-03-01 17:07:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:43,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:43,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:43,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066146233] [2022-03-01 17:07:43,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066146233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:43,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:43,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:43,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400647722] [2022-03-01 17:07:43,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:43,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:43,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:43,616 INFO L87 Difference]: Start difference. First operand 1511 states and 5994 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:43,734 INFO L93 Difference]: Finished difference Result 3397 states and 12611 transitions. [2022-03-01 17:07:43,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:43,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:43,742 INFO L225 Difference]: With dead ends: 3397 [2022-03-01 17:07:43,743 INFO L226 Difference]: Without dead ends: 3208 [2022-03-01 17:07:43,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:43,743 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:43,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 137 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:43,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2022-03-01 17:07:43,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 1574. [2022-03-01 17:07:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1573 states have (on average 3.9421487603305785) internal successors, (6201), 1573 states have internal predecessors, (6201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 6201 transitions. [2022-03-01 17:07:43,776 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 6201 transitions. Word has length 25 [2022-03-01 17:07:43,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:43,776 INFO L470 AbstractCegarLoop]: Abstraction has 1574 states and 6201 transitions. [2022-03-01 17:07:43,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 6201 transitions. [2022-03-01 17:07:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:43,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:43,781 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] [2022-03-01 17:07:43,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-01 17:07:43,781 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:43,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:43,781 INFO L85 PathProgramCache]: Analyzing trace with hash -726136397, now seen corresponding path program 112 times [2022-03-01 17:07:43,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:43,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023350396] [2022-03-01 17:07:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:43,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:43,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:43,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023350396] [2022-03-01 17:07:43,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023350396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:43,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:43,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:43,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159172135] [2022-03-01 17:07:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:43,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:43,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:43,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:43,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:43,861 INFO L87 Difference]: Start difference. First operand 1574 states and 6201 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:43,949 INFO L93 Difference]: Finished difference Result 3430 states and 12694 transitions. [2022-03-01 17:07:43,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:43,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:43,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:43,958 INFO L225 Difference]: With dead ends: 3430 [2022-03-01 17:07:43,958 INFO L226 Difference]: Without dead ends: 3145 [2022-03-01 17:07:43,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:43,958 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 123 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:43,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 152 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2022-03-01 17:07:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 1511. [2022-03-01 17:07:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.9496688741721853) internal successors, (5964), 1510 states have internal predecessors, (5964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5964 transitions. [2022-03-01 17:07:43,996 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5964 transitions. Word has length 25 [2022-03-01 17:07:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:43,996 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5964 transitions. [2022-03-01 17:07:43,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:43,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5964 transitions. [2022-03-01 17:07:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:43,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:43,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:43,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-01 17:07:43,999 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:43,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:43,999 INFO L85 PathProgramCache]: Analyzing trace with hash 226091443, now seen corresponding path program 113 times [2022-03-01 17:07:43,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:44,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743598145] [2022-03-01 17:07:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:44,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:44,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:44,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743598145] [2022-03-01 17:07:44,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743598145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:44,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:44,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:44,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618926420] [2022-03-01 17:07:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:44,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:44,082 INFO L87 Difference]: Start difference. First operand 1511 states and 5964 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:44,199 INFO L93 Difference]: Finished difference Result 3366 states and 12489 transitions. [2022-03-01 17:07:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:44,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:44,208 INFO L225 Difference]: With dead ends: 3366 [2022-03-01 17:07:44,208 INFO L226 Difference]: Without dead ends: 3183 [2022-03-01 17:07:44,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:44,209 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:44,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 142 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:44,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3183 states. [2022-03-01 17:07:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3183 to 1555. [2022-03-01 17:07:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1554 states have (on average 3.9356499356499355) internal successors, (6116), 1554 states have internal predecessors, (6116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 6116 transitions. [2022-03-01 17:07:44,245 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 6116 transitions. Word has length 25 [2022-03-01 17:07:44,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:44,245 INFO L470 AbstractCegarLoop]: Abstraction has 1555 states and 6116 transitions. [2022-03-01 17:07:44,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 6116 transitions. [2022-03-01 17:07:44,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:44,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:44,248 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] [2022-03-01 17:07:44,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-01 17:07:44,248 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:44,248 INFO L85 PathProgramCache]: Analyzing trace with hash -843427563, now seen corresponding path program 114 times [2022-03-01 17:07:44,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:44,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579604533] [2022-03-01 17:07:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:44,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:44,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:44,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:44,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579604533] [2022-03-01 17:07:44,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579604533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:44,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:44,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:44,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388068387] [2022-03-01 17:07:44,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:44,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:44,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:44,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:44,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:44,330 INFO L87 Difference]: Start difference. First operand 1555 states and 6116 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:44,422 INFO L93 Difference]: Finished difference Result 3405 states and 12592 transitions. [2022-03-01 17:07:44,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:44,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:44,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:44,430 INFO L225 Difference]: With dead ends: 3405 [2022-03-01 17:07:44,430 INFO L226 Difference]: Without dead ends: 3109 [2022-03-01 17:07:44,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:44,431 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:44,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 158 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:44,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2022-03-01 17:07:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 1481. [2022-03-01 17:07:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.962162162162162) internal successors, (5864), 1480 states have internal predecessors, (5864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5864 transitions. [2022-03-01 17:07:44,461 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5864 transitions. Word has length 25 [2022-03-01 17:07:44,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:44,462 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5864 transitions. [2022-03-01 17:07:44,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5864 transitions. [2022-03-01 17:07:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:44,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:44,464 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] [2022-03-01 17:07:44,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-01 17:07:44,464 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1542621585, now seen corresponding path program 115 times [2022-03-01 17:07:44,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:44,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137234494] [2022-03-01 17:07:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:44,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:44,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:44,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137234494] [2022-03-01 17:07:44,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137234494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:44,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:44,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:44,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230753114] [2022-03-01 17:07:44,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:44,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:44,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:44,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:44,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:44,547 INFO L87 Difference]: Start difference. First operand 1481 states and 5864 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:44,649 INFO L93 Difference]: Finished difference Result 3292 states and 12263 transitions. [2022-03-01 17:07:44,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:44,649 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:44,657 INFO L225 Difference]: With dead ends: 3292 [2022-03-01 17:07:44,657 INFO L226 Difference]: Without dead ends: 3105 [2022-03-01 17:07:44,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:44,658 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:44,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:44,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2022-03-01 17:07:44,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 1531. [2022-03-01 17:07:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.9562091503267975) internal successors, (6053), 1530 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 6053 transitions. [2022-03-01 17:07:44,695 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 6053 transitions. Word has length 25 [2022-03-01 17:07:44,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:44,695 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 6053 transitions. [2022-03-01 17:07:44,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 6053 transitions. [2022-03-01 17:07:44,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:44,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:44,698 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] [2022-03-01 17:07:44,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-01 17:07:44,698 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:44,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:44,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1671283085, now seen corresponding path program 116 times [2022-03-01 17:07:44,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:44,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496340559] [2022-03-01 17:07:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:44,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:44,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:44,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496340559] [2022-03-01 17:07:44,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496340559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:44,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:44,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:44,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564542728] [2022-03-01 17:07:44,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:44,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:44,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:44,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:44,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:44,829 INFO L87 Difference]: Start difference. First operand 1531 states and 6053 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:44,928 INFO L93 Difference]: Finished difference Result 3288 states and 12223 transitions. [2022-03-01 17:07:44,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:44,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:44,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:44,936 INFO L225 Difference]: With dead ends: 3288 [2022-03-01 17:07:44,936 INFO L226 Difference]: Without dead ends: 3077 [2022-03-01 17:07:44,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:44,936 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:44,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 148 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-03-01 17:07:44,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1503. [2022-03-01 17:07:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.9620505992010653) internal successors, (5951), 1502 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 5951 transitions. [2022-03-01 17:07:44,984 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 5951 transitions. Word has length 25 [2022-03-01 17:07:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:44,984 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 5951 transitions. [2022-03-01 17:07:44,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:44,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 5951 transitions. [2022-03-01 17:07:44,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:44,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:44,987 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] [2022-03-01 17:07:44,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-01 17:07:44,987 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:44,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:44,988 INFO L85 PathProgramCache]: Analyzing trace with hash 232040563, now seen corresponding path program 117 times [2022-03-01 17:07:44,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:44,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020917623] [2022-03-01 17:07:44,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:44,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:45,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:45,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020917623] [2022-03-01 17:07:45,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020917623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:45,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:45,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:45,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490459729] [2022-03-01 17:07:45,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:45,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:45,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:45,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:45,073 INFO L87 Difference]: Start difference. First operand 1503 states and 5951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:45,159 INFO L93 Difference]: Finished difference Result 3349 states and 12451 transitions. [2022-03-01 17:07:45,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:45,159 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:45,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:45,166 INFO L225 Difference]: With dead ends: 3349 [2022-03-01 17:07:45,166 INFO L226 Difference]: Without dead ends: 3162 [2022-03-01 17:07:45,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:45,167 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:45,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 139 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:45,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2022-03-01 17:07:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 1549. [2022-03-01 17:07:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1548 states have (on average 3.945736434108527) internal successors, (6108), 1548 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 6108 transitions. [2022-03-01 17:07:45,197 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 6108 transitions. Word has length 25 [2022-03-01 17:07:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:45,197 INFO L470 AbstractCegarLoop]: Abstraction has 1549 states and 6108 transitions. [2022-03-01 17:07:45,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 6108 transitions. [2022-03-01 17:07:45,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:45,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:45,200 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] [2022-03-01 17:07:45,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-01 17:07:45,200 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:45,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1555341197, now seen corresponding path program 118 times [2022-03-01 17:07:45,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:45,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961169528] [2022-03-01 17:07:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:45,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:45,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:45,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961169528] [2022-03-01 17:07:45,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961169528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:45,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:45,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:45,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458740536] [2022-03-01 17:07:45,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:45,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:45,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:45,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:45,285 INFO L87 Difference]: Start difference. First operand 1549 states and 6108 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:45,368 INFO L93 Difference]: Finished difference Result 3384 states and 12540 transitions. [2022-03-01 17:07:45,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:45,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:45,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:45,377 INFO L225 Difference]: With dead ends: 3384 [2022-03-01 17:07:45,377 INFO L226 Difference]: Without dead ends: 3116 [2022-03-01 17:07:45,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:45,377 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:45,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 146 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:45,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-03-01 17:07:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 1503. [2022-03-01 17:07:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1502 states have (on average 3.947403462050599) internal successors, (5929), 1502 states have internal predecessors, (5929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 5929 transitions. [2022-03-01 17:07:45,412 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 5929 transitions. Word has length 25 [2022-03-01 17:07:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:45,412 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 5929 transitions. [2022-03-01 17:07:45,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 5929 transitions. [2022-03-01 17:07:45,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:45,415 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:45,415 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] [2022-03-01 17:07:45,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-01 17:07:45,415 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:45,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:45,415 INFO L85 PathProgramCache]: Analyzing trace with hash 620045525, now seen corresponding path program 119 times [2022-03-01 17:07:45,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:45,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410658363] [2022-03-01 17:07:45,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:45,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:45,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:45,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410658363] [2022-03-01 17:07:45,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410658363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:45,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:45,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:45,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182511290] [2022-03-01 17:07:45,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:45,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:45,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:45,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:45,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:45,521 INFO L87 Difference]: Start difference. First operand 1503 states and 5929 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:45,603 INFO L93 Difference]: Finished difference Result 3339 states and 12398 transitions. [2022-03-01 17:07:45,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:45,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:45,610 INFO L225 Difference]: With dead ends: 3339 [2022-03-01 17:07:45,610 INFO L226 Difference]: Without dead ends: 3156 [2022-03-01 17:07:45,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:45,610 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:45,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 142 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3156 states. [2022-03-01 17:07:45,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3156 to 1547. [2022-03-01 17:07:45,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1546 states have (on average 3.9333764553686934) internal successors, (6081), 1546 states have internal predecessors, (6081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 6081 transitions. [2022-03-01 17:07:45,642 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 6081 transitions. Word has length 25 [2022-03-01 17:07:45,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:45,642 INFO L470 AbstractCegarLoop]: Abstraction has 1547 states and 6081 transitions. [2022-03-01 17:07:45,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 6081 transitions. [2022-03-01 17:07:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:45,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:45,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:45,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-01 17:07:45,645 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:45,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1824694707, now seen corresponding path program 120 times [2022-03-01 17:07:45,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:45,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869859085] [2022-03-01 17:07:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:45,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:45,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:45,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869859085] [2022-03-01 17:07:45,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869859085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:45,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:45,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:45,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776075586] [2022-03-01 17:07:45,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:45,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:45,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:45,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:45,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:45,727 INFO L87 Difference]: Start difference. First operand 1547 states and 6081 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:45,826 INFO L93 Difference]: Finished difference Result 3378 states and 12501 transitions. [2022-03-01 17:07:45,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:45,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:45,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:45,835 INFO L225 Difference]: With dead ends: 3378 [2022-03-01 17:07:45,835 INFO L226 Difference]: Without dead ends: 3057 [2022-03-01 17:07:45,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:45,835 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 178 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 [2022-03-01 17:07:45,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 178 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:45,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2022-03-01 17:07:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 1448. [2022-03-01 17:07:45,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9979267449896336) internal successors, (5785), 1447 states have internal predecessors, (5785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5785 transitions. [2022-03-01 17:07:45,868 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5785 transitions. Word has length 25 [2022-03-01 17:07:45,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:45,868 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5785 transitions. [2022-03-01 17:07:45,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:45,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5785 transitions. [2022-03-01 17:07:45,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:45,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:45,870 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] [2022-03-01 17:07:45,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-01 17:07:45,870 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:45,870 INFO L85 PathProgramCache]: Analyzing trace with hash -863357259, now seen corresponding path program 121 times [2022-03-01 17:07:45,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:45,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347111562] [2022-03-01 17:07:45,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:45,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:45,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347111562] [2022-03-01 17:07:45,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347111562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:45,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:45,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:45,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036392852] [2022-03-01 17:07:45,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:45,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:45,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:45,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:45,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:45,958 INFO L87 Difference]: Start difference. First operand 1448 states and 5785 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:46,053 INFO L93 Difference]: Finished difference Result 3141 states and 11643 transitions. [2022-03-01 17:07:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:46,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:46,062 INFO L225 Difference]: With dead ends: 3141 [2022-03-01 17:07:46,062 INFO L226 Difference]: Without dead ends: 2982 [2022-03-01 17:07:46,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:46,063 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 116 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:46,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 141 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:46,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-03-01 17:07:46,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 1504. [2022-03-01 17:07:46,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 3.9900199600798403) internal successors, (5997), 1503 states have internal predecessors, (5997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 5997 transitions. [2022-03-01 17:07:46,098 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 5997 transitions. Word has length 25 [2022-03-01 17:07:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:46,098 INFO L470 AbstractCegarLoop]: Abstraction has 1504 states and 5997 transitions. [2022-03-01 17:07:46,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 5997 transitions. [2022-03-01 17:07:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:46,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:46,101 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] [2022-03-01 17:07:46,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-01 17:07:46,101 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1871655243, now seen corresponding path program 122 times [2022-03-01 17:07:46,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:46,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456536900] [2022-03-01 17:07:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:46,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:46,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:46,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456536900] [2022-03-01 17:07:46,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456536900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:46,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:46,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:46,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079430957] [2022-03-01 17:07:46,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:46,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:46,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:46,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:46,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:46,235 INFO L87 Difference]: Start difference. First operand 1504 states and 5997 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:46,355 INFO L93 Difference]: Finished difference Result 3204 states and 11850 transitions. [2022-03-01 17:07:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:46,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:46,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:46,363 INFO L225 Difference]: With dead ends: 3204 [2022-03-01 17:07:46,363 INFO L226 Difference]: Without dead ends: 2950 [2022-03-01 17:07:46,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:46,363 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:46,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 161 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:46,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2022-03-01 17:07:46,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 1472. [2022-03-01 17:07:46,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.989802855200544) internal successors, (5869), 1471 states have internal predecessors, (5869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5869 transitions. [2022-03-01 17:07:46,393 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5869 transitions. Word has length 25 [2022-03-01 17:07:46,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:46,393 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5869 transitions. [2022-03-01 17:07:46,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5869 transitions. [2022-03-01 17:07:46,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:46,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:46,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:46,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-01 17:07:46,396 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:46,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:46,396 INFO L85 PathProgramCache]: Analyzing trace with hash -824742575, now seen corresponding path program 123 times [2022-03-01 17:07:46,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:46,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928410688] [2022-03-01 17:07:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:46,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:46,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:46,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928410688] [2022-03-01 17:07:46,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928410688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:46,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:46,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:46,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200655024] [2022-03-01 17:07:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:46,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:46,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:46,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:46,487 INFO L87 Difference]: Start difference. First operand 1472 states and 5869 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:46,564 INFO L93 Difference]: Finished difference Result 3092 states and 11449 transitions. [2022-03-01 17:07:46,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:46,572 INFO L225 Difference]: With dead ends: 3092 [2022-03-01 17:07:46,573 INFO L226 Difference]: Without dead ends: 2933 [2022-03-01 17:07:46,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:46,574 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 115 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:46,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:46,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2022-03-01 17:07:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1488. [2022-03-01 17:07:46,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.9791526563550774) internal successors, (5917), 1487 states have internal predecessors, (5917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5917 transitions. [2022-03-01 17:07:46,613 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5917 transitions. Word has length 25 [2022-03-01 17:07:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:46,614 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5917 transitions. [2022-03-01 17:07:46,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5917 transitions. [2022-03-01 17:07:46,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:46,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:46,616 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] [2022-03-01 17:07:46,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-01 17:07:46,617 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:46,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1880289971, now seen corresponding path program 124 times [2022-03-01 17:07:46,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:46,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193289528] [2022-03-01 17:07:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:46,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:46,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:46,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193289528] [2022-03-01 17:07:46,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193289528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:46,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:46,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:46,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537796444] [2022-03-01 17:07:46,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:46,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:46,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:46,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:46,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:46,733 INFO L87 Difference]: Start difference. First operand 1488 states and 5917 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:46,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:46,982 INFO L93 Difference]: Finished difference Result 3122 states and 11542 transitions. [2022-03-01 17:07:46,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:46,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:46,990 INFO L225 Difference]: With dead ends: 3122 [2022-03-01 17:07:46,991 INFO L226 Difference]: Without dead ends: 2917 [2022-03-01 17:07:46,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:46,991 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 93 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:46,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 180 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:07:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-03-01 17:07:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1472. [2022-03-01 17:07:47,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9843643779741673) internal successors, (5861), 1471 states have internal predecessors, (5861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5861 transitions. [2022-03-01 17:07:47,030 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5861 transitions. Word has length 25 [2022-03-01 17:07:47,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:47,030 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5861 transitions. [2022-03-01 17:07:47,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5861 transitions. [2022-03-01 17:07:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:47,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:47,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:47,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-01 17:07:47,033 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:47,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:47,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1242126485, now seen corresponding path program 125 times [2022-03-01 17:07:47,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:47,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416165012] [2022-03-01 17:07:47,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:47,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:47,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:47,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416165012] [2022-03-01 17:07:47,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416165012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:47,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:47,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:47,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332897593] [2022-03-01 17:07:47,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:47,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:47,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:47,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:47,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:47,151 INFO L87 Difference]: Start difference. First operand 1472 states and 5861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:47,300 INFO L93 Difference]: Finished difference Result 3232 states and 11947 transitions. [2022-03-01 17:07:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:47,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:47,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:47,310 INFO L225 Difference]: With dead ends: 3232 [2022-03-01 17:07:47,310 INFO L226 Difference]: Without dead ends: 3043 [2022-03-01 17:07:47,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:47,311 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:47,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 152 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2022-03-01 17:07:47,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 1535. [2022-03-01 17:07:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.955671447196871) internal successors, (6068), 1534 states have internal predecessors, (6068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6068 transitions. [2022-03-01 17:07:47,354 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6068 transitions. Word has length 25 [2022-03-01 17:07:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:47,354 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6068 transitions. [2022-03-01 17:07:47,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6068 transitions. [2022-03-01 17:07:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:47,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:47,357 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] [2022-03-01 17:07:47,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-01 17:07:47,358 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:47,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1540179443, now seen corresponding path program 126 times [2022-03-01 17:07:47,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:47,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157248776] [2022-03-01 17:07:47,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:47,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:47,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:47,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:47,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157248776] [2022-03-01 17:07:47,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157248776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:47,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:47,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:47,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249237904] [2022-03-01 17:07:47,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:47,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:47,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:47,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:47,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:47,630 INFO L87 Difference]: Start difference. First operand 1535 states and 6068 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:47,744 INFO L93 Difference]: Finished difference Result 3265 states and 12030 transitions. [2022-03-01 17:07:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:47,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:47,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:47,751 INFO L225 Difference]: With dead ends: 3265 [2022-03-01 17:07:47,751 INFO L226 Difference]: Without dead ends: 2956 [2022-03-01 17:07:47,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:47,751 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 111 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:47,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 151 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:47,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-03-01 17:07:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1448. [2022-03-01 17:07:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9896337249481686) internal successors, (5773), 1447 states have internal predecessors, (5773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5773 transitions. [2022-03-01 17:07:47,779 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5773 transitions. Word has length 25 [2022-03-01 17:07:47,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:47,779 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5773 transitions. [2022-03-01 17:07:47,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5773 transitions. [2022-03-01 17:07:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:47,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:47,781 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] [2022-03-01 17:07:47,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-01 17:07:47,782 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 804518581, now seen corresponding path program 127 times [2022-03-01 17:07:47,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:47,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889728666] [2022-03-01 17:07:47,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:47,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:47,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:47,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889728666] [2022-03-01 17:07:47,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889728666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:47,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:47,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:47,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540995697] [2022-03-01 17:07:47,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:47,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:47,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:47,967 INFO L87 Difference]: Start difference. First operand 1448 states and 5773 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:48,129 INFO L93 Difference]: Finished difference Result 3114 states and 11547 transitions. [2022-03-01 17:07:48,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:48,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:48,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:48,136 INFO L225 Difference]: With dead ends: 3114 [2022-03-01 17:07:48,136 INFO L226 Difference]: Without dead ends: 2955 [2022-03-01 17:07:48,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:48,136 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:48,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 172 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:48,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2022-03-01 17:07:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1496. [2022-03-01 17:07:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 3.9846153846153847) internal successors, (5957), 1495 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5957 transitions. [2022-03-01 17:07:48,164 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5957 transitions. Word has length 25 [2022-03-01 17:07:48,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:48,164 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5957 transitions. [2022-03-01 17:07:48,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5957 transitions. [2022-03-01 17:07:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:48,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:48,166 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] [2022-03-01 17:07:48,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-01 17:07:48,167 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:48,167 INFO L85 PathProgramCache]: Analyzing trace with hash -203779403, now seen corresponding path program 128 times [2022-03-01 17:07:48,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:48,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829823226] [2022-03-01 17:07:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:48,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:48,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:48,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829823226] [2022-03-01 17:07:48,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829823226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:48,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:48,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:48,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826792210] [2022-03-01 17:07:48,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:48,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:48,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:48,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:48,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:48,293 INFO L87 Difference]: Start difference. First operand 1496 states and 5957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:48,402 INFO L93 Difference]: Finished difference Result 3177 states and 11754 transitions. [2022-03-01 17:07:48,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:48,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:48,409 INFO L225 Difference]: With dead ends: 3177 [2022-03-01 17:07:48,409 INFO L226 Difference]: Without dead ends: 2923 [2022-03-01 17:07:48,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:48,409 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:48,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 156 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:48,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-03-01 17:07:48,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1464. [2022-03-01 17:07:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9842788790157213) internal successors, (5829), 1463 states have internal predecessors, (5829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5829 transitions. [2022-03-01 17:07:48,438 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5829 transitions. Word has length 25 [2022-03-01 17:07:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:48,438 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5829 transitions. [2022-03-01 17:07:48,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5829 transitions. [2022-03-01 17:07:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:48,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:48,441 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] [2022-03-01 17:07:48,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-01 17:07:48,441 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1793552087, now seen corresponding path program 129 times [2022-03-01 17:07:48,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:48,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629064234] [2022-03-01 17:07:48,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:48,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:48,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:48,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:48,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629064234] [2022-03-01 17:07:48,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629064234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:48,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:48,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:48,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214001905] [2022-03-01 17:07:48,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:48,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:48,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:48,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:48,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:48,564 INFO L87 Difference]: Start difference. First operand 1464 states and 5829 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:48,665 INFO L93 Difference]: Finished difference Result 3063 states and 11348 transitions. [2022-03-01 17:07:48,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:48,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:48,672 INFO L225 Difference]: With dead ends: 3063 [2022-03-01 17:07:48,672 INFO L226 Difference]: Without dead ends: 2904 [2022-03-01 17:07:48,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:48,672 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:48,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 148 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:48,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2022-03-01 17:07:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1480. [2022-03-01 17:07:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1479 states have (on average 3.973630831643002) internal successors, (5877), 1479 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 5877 transitions. [2022-03-01 17:07:48,733 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 5877 transitions. Word has length 25 [2022-03-01 17:07:48,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:48,733 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 5877 transitions. [2022-03-01 17:07:48,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 5877 transitions. [2022-03-01 17:07:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:48,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:48,735 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] [2022-03-01 17:07:48,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-01 17:07:48,735 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:48,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:48,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1493117225, now seen corresponding path program 130 times [2022-03-01 17:07:48,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:48,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049485958] [2022-03-01 17:07:48,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:48,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:48,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:48,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:48,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049485958] [2022-03-01 17:07:48,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049485958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:48,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:48,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:48,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905484336] [2022-03-01 17:07:48,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:48,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:48,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:48,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:48,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:48,855 INFO L87 Difference]: Start difference. First operand 1480 states and 5877 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:48,980 INFO L93 Difference]: Finished difference Result 3091 states and 11436 transitions. [2022-03-01 17:07:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:48,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:48,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:48,986 INFO L225 Difference]: With dead ends: 3091 [2022-03-01 17:07:48,986 INFO L226 Difference]: Without dead ends: 2888 [2022-03-01 17:07:48,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:48,987 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:48,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 160 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2022-03-01 17:07:49,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 1464. [2022-03-01 17:07:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9788106630211892) internal successors, (5821), 1463 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5821 transitions. [2022-03-01 17:07:49,014 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5821 transitions. Word has length 25 [2022-03-01 17:07:49,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:49,014 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5821 transitions. [2022-03-01 17:07:49,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5821 transitions. [2022-03-01 17:07:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:49,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:49,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:49,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-01 17:07:49,017 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:49,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:49,017 INFO L85 PathProgramCache]: Analyzing trace with hash 195129047, now seen corresponding path program 131 times [2022-03-01 17:07:49,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:49,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354781934] [2022-03-01 17:07:49,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:49,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:49,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:49,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354781934] [2022-03-01 17:07:49,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354781934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:49,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:49,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:49,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058714744] [2022-03-01 17:07:49,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:49,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:49,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:49,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:49,134 INFO L87 Difference]: Start difference. First operand 1464 states and 5821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:49,248 INFO L93 Difference]: Finished difference Result 3184 states and 11790 transitions. [2022-03-01 17:07:49,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:49,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:49,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:49,254 INFO L225 Difference]: With dead ends: 3184 [2022-03-01 17:07:49,254 INFO L226 Difference]: Without dead ends: 2997 [2022-03-01 17:07:49,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:49,255 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 119 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:49,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 137 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:49,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2022-03-01 17:07:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 1510. [2022-03-01 17:07:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.9615639496355204) internal successors, (5978), 1509 states have internal predecessors, (5978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5978 transitions. [2022-03-01 17:07:49,284 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5978 transitions. Word has length 25 [2022-03-01 17:07:49,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:49,284 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 5978 transitions. [2022-03-01 17:07:49,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5978 transitions. [2022-03-01 17:07:49,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:49,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:49,286 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] [2022-03-01 17:07:49,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-01 17:07:49,286 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:49,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:49,287 INFO L85 PathProgramCache]: Analyzing trace with hash -158010443, now seen corresponding path program 132 times [2022-03-01 17:07:49,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:49,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788415105] [2022-03-01 17:07:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:49,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:49,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:49,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788415105] [2022-03-01 17:07:49,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788415105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:49,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:49,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:49,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728667978] [2022-03-01 17:07:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:49,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:49,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:49,414 INFO L87 Difference]: Start difference. First operand 1510 states and 5978 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:49,517 INFO L93 Difference]: Finished difference Result 3219 states and 11879 transitions. [2022-03-01 17:07:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:49,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:49,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:49,524 INFO L225 Difference]: With dead ends: 3219 [2022-03-01 17:07:49,524 INFO L226 Difference]: Without dead ends: 2935 [2022-03-01 17:07:49,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:49,525 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:49,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 144 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:49,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-03-01 17:07:49,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1448. [2022-03-01 17:07:49,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.984105044920525) internal successors, (5765), 1447 states have internal predecessors, (5765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5765 transitions. [2022-03-01 17:07:49,553 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5765 transitions. Word has length 25 [2022-03-01 17:07:49,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:49,553 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5765 transitions. [2022-03-01 17:07:49,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5765 transitions. [2022-03-01 17:07:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:49,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:49,556 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] [2022-03-01 17:07:49,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-01 17:07:49,556 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash -833504879, now seen corresponding path program 133 times [2022-03-01 17:07:49,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:49,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344010685] [2022-03-01 17:07:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:49,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:49,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:49,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:49,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344010685] [2022-03-01 17:07:49,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344010685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:49,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:49,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:49,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791634050] [2022-03-01 17:07:49,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:49,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:49,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:49,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:49,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:49,684 INFO L87 Difference]: Start difference. First operand 1448 states and 5765 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:49,781 INFO L93 Difference]: Finished difference Result 2992 states and 11083 transitions. [2022-03-01 17:07:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:49,788 INFO L225 Difference]: With dead ends: 2992 [2022-03-01 17:07:49,788 INFO L226 Difference]: Without dead ends: 2833 [2022-03-01 17:07:49,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:49,788 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 128 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:49,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 132 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:49,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2022-03-01 17:07:49,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 1472. [2022-03-01 17:07:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.976206662134602) internal successors, (5849), 1471 states have internal predecessors, (5849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5849 transitions. [2022-03-01 17:07:49,818 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5849 transitions. Word has length 25 [2022-03-01 17:07:49,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:49,819 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5849 transitions. [2022-03-01 17:07:49,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5849 transitions. [2022-03-01 17:07:49,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:49,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:49,821 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] [2022-03-01 17:07:49,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-01 17:07:49,821 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:49,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:49,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1871527667, now seen corresponding path program 134 times [2022-03-01 17:07:49,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:49,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997714600] [2022-03-01 17:07:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:49,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:49,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:49,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997714600] [2022-03-01 17:07:49,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997714600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:49,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:49,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:49,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769974790] [2022-03-01 17:07:49,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:49,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:49,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:49,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:49,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:49,946 INFO L87 Difference]: Start difference. First operand 1472 states and 5849 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:50,064 INFO L93 Difference]: Finished difference Result 3022 states and 11176 transitions. [2022-03-01 17:07:50,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:50,065 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:50,071 INFO L225 Difference]: With dead ends: 3022 [2022-03-01 17:07:50,071 INFO L226 Difference]: Without dead ends: 2817 [2022-03-01 17:07:50,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:50,071 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:50,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 162 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:50,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2022-03-01 17:07:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 1456. [2022-03-01 17:07:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9814432989690722) internal successors, (5793), 1455 states have internal predecessors, (5793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5793 transitions. [2022-03-01 17:07:50,098 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5793 transitions. Word has length 25 [2022-03-01 17:07:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:50,098 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5793 transitions. [2022-03-01 17:07:50,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5793 transitions. [2022-03-01 17:07:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:50,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:50,100 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] [2022-03-01 17:07:50,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-01 17:07:50,100 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:50,101 INFO L85 PathProgramCache]: Analyzing trace with hash 247557747, now seen corresponding path program 135 times [2022-03-01 17:07:50,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:50,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004116268] [2022-03-01 17:07:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:50,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:50,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:50,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:50,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004116268] [2022-03-01 17:07:50,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004116268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:50,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:50,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:50,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379379277] [2022-03-01 17:07:50,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:50,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:50,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:50,228 INFO L87 Difference]: Start difference. First operand 1456 states and 5793 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:50,359 INFO L93 Difference]: Finished difference Result 2990 states and 11070 transitions. [2022-03-01 17:07:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:50,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:50,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:50,366 INFO L225 Difference]: With dead ends: 2990 [2022-03-01 17:07:50,366 INFO L226 Difference]: Without dead ends: 2831 [2022-03-01 17:07:50,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:50,367 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 185 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 [2022-03-01 17:07:50,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 185 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-01 17:07:50,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1472. [2022-03-01 17:07:50,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9707681849082257) internal successors, (5841), 1471 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5841 transitions. [2022-03-01 17:07:50,397 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5841 transitions. Word has length 25 [2022-03-01 17:07:50,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:50,398 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5841 transitions. [2022-03-01 17:07:50,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5841 transitions. [2022-03-01 17:07:50,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:50,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:50,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:50,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-01 17:07:50,400 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:50,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:50,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1255855731, now seen corresponding path program 136 times [2022-03-01 17:07:50,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:50,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171923588] [2022-03-01 17:07:50,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:50,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:50,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:50,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171923588] [2022-03-01 17:07:50,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171923588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:50,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:50,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:50,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433383259] [2022-03-01 17:07:50,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:50,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:50,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:50,510 INFO L87 Difference]: Start difference. First operand 1472 states and 5841 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:50,625 INFO L93 Difference]: Finished difference Result 3018 states and 11158 transitions. [2022-03-01 17:07:50,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:50,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:50,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:50,631 INFO L225 Difference]: With dead ends: 3018 [2022-03-01 17:07:50,631 INFO L226 Difference]: Without dead ends: 2815 [2022-03-01 17:07:50,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:50,632 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:50,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 147 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:50,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2022-03-01 17:07:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 1456. [2022-03-01 17:07:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9759450171821307) internal successors, (5785), 1455 states have internal predecessors, (5785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5785 transitions. [2022-03-01 17:07:50,681 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5785 transitions. Word has length 25 [2022-03-01 17:07:50,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:50,681 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5785 transitions. [2022-03-01 17:07:50,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5785 transitions. [2022-03-01 17:07:50,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:50,683 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:50,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:50,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-01 17:07:50,684 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:50,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1664719701, now seen corresponding path program 137 times [2022-03-01 17:07:50,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:50,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939098822] [2022-03-01 17:07:50,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:50,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:50,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:50,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939098822] [2022-03-01 17:07:50,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939098822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:50,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:50,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:50,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291683251] [2022-03-01 17:07:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:50,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:50,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:50,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:50,767 INFO L87 Difference]: Start difference. First operand 1456 states and 5785 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:50,846 INFO L93 Difference]: Finished difference Result 3064 states and 11339 transitions. [2022-03-01 17:07:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:50,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:50,852 INFO L225 Difference]: With dead ends: 3064 [2022-03-01 17:07:50,852 INFO L226 Difference]: Without dead ends: 2875 [2022-03-01 17:07:50,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:50,853 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:50,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2022-03-01 17:07:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1486. [2022-03-01 17:07:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.958249158249158) internal successors, (5878), 1485 states have internal predecessors, (5878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5878 transitions. [2022-03-01 17:07:50,880 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5878 transitions. Word has length 25 [2022-03-01 17:07:50,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:50,881 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5878 transitions. [2022-03-01 17:07:50,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:50,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5878 transitions. [2022-03-01 17:07:50,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:50,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:50,883 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] [2022-03-01 17:07:50,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-01 17:07:50,883 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:50,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:50,883 INFO L85 PathProgramCache]: Analyzing trace with hash -378617293, now seen corresponding path program 138 times [2022-03-01 17:07:50,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:50,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785470642] [2022-03-01 17:07:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:50,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:50,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:50,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785470642] [2022-03-01 17:07:50,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785470642] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:50,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:50,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:50,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301134048] [2022-03-01 17:07:50,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:50,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:50,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:50,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:50,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:50,962 INFO L87 Difference]: Start difference. First operand 1486 states and 5878 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:51,047 INFO L93 Difference]: Finished difference Result 3062 states and 11304 transitions. [2022-03-01 17:07:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:51,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:51,054 INFO L225 Difference]: With dead ends: 3062 [2022-03-01 17:07:51,054 INFO L226 Difference]: Without dead ends: 2837 [2022-03-01 17:07:51,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:51,054 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:51,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2022-03-01 17:07:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1448. [2022-03-01 17:07:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9813407049067036) internal successors, (5761), 1447 states have internal predecessors, (5761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5761 transitions. [2022-03-01 17:07:51,082 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5761 transitions. Word has length 25 [2022-03-01 17:07:51,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:51,106 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5761 transitions. [2022-03-01 17:07:51,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5761 transitions. [2022-03-01 17:07:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:51,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:51,109 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] [2022-03-01 17:07:51,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-01 17:07:51,109 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:51,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:51,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1725034313, now seen corresponding path program 139 times [2022-03-01 17:07:51,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:51,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584543761] [2022-03-01 17:07:51,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:51,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:51,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:51,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584543761] [2022-03-01 17:07:51,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584543761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:51,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:51,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:51,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896479373] [2022-03-01 17:07:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:51,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:51,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:51,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:51,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:51,189 INFO L87 Difference]: Start difference. First operand 1448 states and 5761 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:51,277 INFO L93 Difference]: Finished difference Result 3235 states and 11988 transitions. [2022-03-01 17:07:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:51,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:51,284 INFO L225 Difference]: With dead ends: 3235 [2022-03-01 17:07:51,284 INFO L226 Difference]: Without dead ends: 3046 [2022-03-01 17:07:51,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:51,284 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:51,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 158 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:51,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2022-03-01 17:07:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 1517. [2022-03-01 17:07:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.962401055408971) internal successors, (6007), 1516 states have internal predecessors, (6007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 6007 transitions. [2022-03-01 17:07:51,313 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 6007 transitions. Word has length 25 [2022-03-01 17:07:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:51,314 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 6007 transitions. [2022-03-01 17:07:51,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 6007 transitions. [2022-03-01 17:07:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:51,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:51,316 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] [2022-03-01 17:07:51,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-01 17:07:51,316 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:51,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:51,316 INFO L85 PathProgramCache]: Analyzing trace with hash 526595989, now seen corresponding path program 140 times [2022-03-01 17:07:51,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:51,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353624413] [2022-03-01 17:07:51,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:51,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:51,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:51,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353624413] [2022-03-01 17:07:51,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353624413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:51,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:51,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:51,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844864743] [2022-03-01 17:07:51,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:51,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:51,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:51,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:51,401 INFO L87 Difference]: Start difference. First operand 1517 states and 6007 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:51,484 INFO L93 Difference]: Finished difference Result 3233 states and 11953 transitions. [2022-03-01 17:07:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:51,506 INFO L225 Difference]: With dead ends: 3233 [2022-03-01 17:07:51,514 INFO L226 Difference]: Without dead ends: 3016 [2022-03-01 17:07:51,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:51,514 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 124 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:51,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 145 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:51,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-03-01 17:07:51,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 1487. [2022-03-01 17:07:51,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1486 states have (on average 3.9697173620457606) internal successors, (5899), 1486 states have internal predecessors, (5899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 5899 transitions. [2022-03-01 17:07:51,548 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 5899 transitions. Word has length 25 [2022-03-01 17:07:51,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:51,548 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 5899 transitions. [2022-03-01 17:07:51,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 5899 transitions. [2022-03-01 17:07:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:51,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:51,551 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] [2022-03-01 17:07:51,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-01 17:07:51,551 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1789667819, now seen corresponding path program 141 times [2022-03-01 17:07:51,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:51,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453416380] [2022-03-01 17:07:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:51,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:51,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:51,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453416380] [2022-03-01 17:07:51,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453416380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:51,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:51,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:51,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382432579] [2022-03-01 17:07:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:51,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:51,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:51,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:51,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:51,652 INFO L87 Difference]: Start difference. First operand 1487 states and 5899 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:51,744 INFO L93 Difference]: Finished difference Result 3303 states and 12207 transitions. [2022-03-01 17:07:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:51,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:51,752 INFO L225 Difference]: With dead ends: 3303 [2022-03-01 17:07:51,752 INFO L226 Difference]: Without dead ends: 3114 [2022-03-01 17:07:51,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:51,752 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:51,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 160 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2022-03-01 17:07:51,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 1550. [2022-03-01 17:07:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1550 states, 1549 states have (on average 3.9418979987088445) internal successors, (6106), 1549 states have internal predecessors, (6106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1550 states to 1550 states and 6106 transitions. [2022-03-01 17:07:51,786 INFO L78 Accepts]: Start accepts. Automaton has 1550 states and 6106 transitions. Word has length 25 [2022-03-01 17:07:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:51,786 INFO L470 AbstractCegarLoop]: Abstraction has 1550 states and 6106 transitions. [2022-03-01 17:07:51,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:51,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1550 states and 6106 transitions. [2022-03-01 17:07:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:51,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:51,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:51,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-01 17:07:51,789 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:51,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1949511189, now seen corresponding path program 142 times [2022-03-01 17:07:51,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:51,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370775987] [2022-03-01 17:07:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:51,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:51,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:51,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370775987] [2022-03-01 17:07:51,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370775987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:51,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:51,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:51,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96225207] [2022-03-01 17:07:51,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:51,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:51,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:51,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:51,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:51,899 INFO L87 Difference]: Start difference. First operand 1550 states and 6106 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:52,000 INFO L93 Difference]: Finished difference Result 3336 states and 12290 transitions. [2022-03-01 17:07:52,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:52,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:52,008 INFO L225 Difference]: With dead ends: 3336 [2022-03-01 17:07:52,008 INFO L226 Difference]: Without dead ends: 3051 [2022-03-01 17:07:52,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:52,008 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 103 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:52,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2022-03-01 17:07:52,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 1487. [2022-03-01 17:07:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1486 states have (on average 3.9488559892328396) internal successors, (5868), 1486 states have internal predecessors, (5868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 5868 transitions. [2022-03-01 17:07:52,037 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 5868 transitions. Word has length 25 [2022-03-01 17:07:52,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:52,037 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 5868 transitions. [2022-03-01 17:07:52,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 5868 transitions. [2022-03-01 17:07:52,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:52,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:52,039 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] [2022-03-01 17:07:52,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-01 17:07:52,039 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:52,040 INFO L85 PathProgramCache]: Analyzing trace with hash -807320205, now seen corresponding path program 143 times [2022-03-01 17:07:52,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:52,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963074697] [2022-03-01 17:07:52,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:52,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:52,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:52,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:52,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963074697] [2022-03-01 17:07:52,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963074697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:52,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:52,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:52,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165471122] [2022-03-01 17:07:52,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:52,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:52,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:52,154 INFO L87 Difference]: Start difference. First operand 1487 states and 5868 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:52,246 INFO L93 Difference]: Finished difference Result 3282 states and 12115 transitions. [2022-03-01 17:07:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:52,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:52,253 INFO L225 Difference]: With dead ends: 3282 [2022-03-01 17:07:52,253 INFO L226 Difference]: Without dead ends: 3095 [2022-03-01 17:07:52,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:52,253 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:52,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 151 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2022-03-01 17:07:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 1533. [2022-03-01 17:07:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 3.9327676240208875) internal successors, (6025), 1532 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 6025 transitions. [2022-03-01 17:07:52,284 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 6025 transitions. Word has length 25 [2022-03-01 17:07:52,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:52,284 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 6025 transitions. [2022-03-01 17:07:52,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 6025 transitions. [2022-03-01 17:07:52,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:52,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:52,287 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] [2022-03-01 17:07:52,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-01 17:07:52,287 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:52,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1130257493, now seen corresponding path program 144 times [2022-03-01 17:07:52,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:52,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747034845] [2022-03-01 17:07:52,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:52,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:52,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:52,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747034845] [2022-03-01 17:07:52,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747034845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:52,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:52,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:52,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456061661] [2022-03-01 17:07:52,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:52,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:52,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:52,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:52,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:52,390 INFO L87 Difference]: Start difference. First operand 1533 states and 6025 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:52,469 INFO L93 Difference]: Finished difference Result 3317 states and 12204 transitions. [2022-03-01 17:07:52,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:52,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:52,476 INFO L225 Difference]: With dead ends: 3317 [2022-03-01 17:07:52,476 INFO L226 Difference]: Without dead ends: 2994 [2022-03-01 17:07:52,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:52,476 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 100 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:52,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 154 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-03-01 17:07:52,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1432. [2022-03-01 17:07:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.989517819706499) internal successors, (5709), 1431 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5709 transitions. [2022-03-01 17:07:52,504 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5709 transitions. Word has length 25 [2022-03-01 17:07:52,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:52,504 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5709 transitions. [2022-03-01 17:07:52,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5709 transitions. [2022-03-01 17:07:52,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:52,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:52,507 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] [2022-03-01 17:07:52,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-01 17:07:52,507 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2138101417, now seen corresponding path program 145 times [2022-03-01 17:07:52,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:52,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438130162] [2022-03-01 17:07:52,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:52,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:52,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:52,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438130162] [2022-03-01 17:07:52,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438130162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:52,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:52,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:52,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103351552] [2022-03-01 17:07:52,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:52,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:52,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:52,590 INFO L87 Difference]: Start difference. First operand 1432 states and 5709 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:52,673 INFO L93 Difference]: Finished difference Result 3078 states and 11404 transitions. [2022-03-01 17:07:52,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:52,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:52,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:52,680 INFO L225 Difference]: With dead ends: 3078 [2022-03-01 17:07:52,680 INFO L226 Difference]: Without dead ends: 2919 [2022-03-01 17:07:52,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:52,680 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:52,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:52,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2022-03-01 17:07:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 1500. [2022-03-01 17:07:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.9873248832555035) internal successors, (5977), 1499 states have internal predecessors, (5977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5977 transitions. [2022-03-01 17:07:52,708 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5977 transitions. Word has length 25 [2022-03-01 17:07:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:52,709 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5977 transitions. [2022-03-01 17:07:52,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5977 transitions. [2022-03-01 17:07:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:52,711 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:52,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:52,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-01 17:07:52,711 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:52,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:52,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1148567895, now seen corresponding path program 146 times [2022-03-01 17:07:52,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:52,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634671290] [2022-03-01 17:07:52,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:52,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:52,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:52,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634671290] [2022-03-01 17:07:52,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634671290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:52,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:52,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:52,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399789034] [2022-03-01 17:07:52,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:52,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:52,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:52,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:52,835 INFO L87 Difference]: Start difference. First operand 1500 states and 5977 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:52,938 INFO L93 Difference]: Finished difference Result 3141 states and 11611 transitions. [2022-03-01 17:07:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:52,945 INFO L225 Difference]: With dead ends: 3141 [2022-03-01 17:07:52,945 INFO L226 Difference]: Without dead ends: 2887 [2022-03-01 17:07:52,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:52,946 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:52,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 156 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:52,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2022-03-01 17:07:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1468. [2022-03-01 17:07:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9870483980913427) internal successors, (5849), 1467 states have internal predecessors, (5849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5849 transitions. [2022-03-01 17:07:52,976 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5849 transitions. Word has length 25 [2022-03-01 17:07:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:52,976 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5849 transitions. [2022-03-01 17:07:52,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5849 transitions. [2022-03-01 17:07:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:52,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:52,978 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] [2022-03-01 17:07:52,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-01 17:07:52,978 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:52,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2099486733, now seen corresponding path program 147 times [2022-03-01 17:07:52,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:52,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024183938] [2022-03-01 17:07:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:52,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:53,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:53,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024183938] [2022-03-01 17:07:53,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024183938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:53,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:53,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:53,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041314765] [2022-03-01 17:07:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:53,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:53,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:53,065 INFO L87 Difference]: Start difference. First operand 1468 states and 5849 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:53,146 INFO L93 Difference]: Finished difference Result 3029 states and 11210 transitions. [2022-03-01 17:07:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:53,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:53,153 INFO L225 Difference]: With dead ends: 3029 [2022-03-01 17:07:53,153 INFO L226 Difference]: Without dead ends: 2870 [2022-03-01 17:07:53,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:53,153 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:53,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 146 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:53,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2022-03-01 17:07:53,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1484. [2022-03-01 17:07:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.9763991908294) internal successors, (5897), 1483 states have internal predecessors, (5897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5897 transitions. [2022-03-01 17:07:53,181 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5897 transitions. Word has length 25 [2022-03-01 17:07:53,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:53,181 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5897 transitions. [2022-03-01 17:07:53,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5897 transitions. [2022-03-01 17:07:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:53,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:53,183 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] [2022-03-01 17:07:53,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-01 17:07:53,183 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:53,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash 605545813, now seen corresponding path program 148 times [2022-03-01 17:07:53,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:53,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179856760] [2022-03-01 17:07:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:53,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:53,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:53,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:53,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179856760] [2022-03-01 17:07:53,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179856760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:53,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:53,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:53,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92354819] [2022-03-01 17:07:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:53,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:53,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:53,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:53,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:53,270 INFO L87 Difference]: Start difference. First operand 1484 states and 5897 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:53,362 INFO L93 Difference]: Finished difference Result 3059 states and 11303 transitions. [2022-03-01 17:07:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:53,368 INFO L225 Difference]: With dead ends: 3059 [2022-03-01 17:07:53,368 INFO L226 Difference]: Without dead ends: 2854 [2022-03-01 17:07:53,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:53,369 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:53,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 152 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:53,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-03-01 17:07:53,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1468. [2022-03-01 17:07:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.98159509202454) internal successors, (5841), 1467 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5841 transitions. [2022-03-01 17:07:53,396 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5841 transitions. Word has length 25 [2022-03-01 17:07:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:53,396 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5841 transitions. [2022-03-01 17:07:53,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5841 transitions. [2022-03-01 17:07:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:53,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:53,398 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] [2022-03-01 17:07:53,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-01 17:07:53,398 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:53,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:53,399 INFO L85 PathProgramCache]: Analyzing trace with hash -32617673, now seen corresponding path program 149 times [2022-03-01 17:07:53,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:53,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431349426] [2022-03-01 17:07:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:53,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:53,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:53,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431349426] [2022-03-01 17:07:53,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431349426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:53,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:53,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:53,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31976414] [2022-03-01 17:07:53,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:53,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:53,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:53,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:53,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:53,492 INFO L87 Difference]: Start difference. First operand 1468 states and 5841 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:53,598 INFO L93 Difference]: Finished difference Result 3169 states and 11708 transitions. [2022-03-01 17:07:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:53,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:53,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:53,605 INFO L225 Difference]: With dead ends: 3169 [2022-03-01 17:07:53,605 INFO L226 Difference]: Without dead ends: 2980 [2022-03-01 17:07:53,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:53,605 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 94 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:53,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 176 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:53,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2022-03-01 17:07:53,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 1531. [2022-03-01 17:07:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1530 states have (on average 3.9529411764705884) internal successors, (6048), 1530 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 6048 transitions. [2022-03-01 17:07:53,651 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 6048 transitions. Word has length 25 [2022-03-01 17:07:53,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:53,652 INFO L470 AbstractCegarLoop]: Abstraction has 1531 states and 6048 transitions. [2022-03-01 17:07:53,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 6048 transitions. [2022-03-01 17:07:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:53,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:53,654 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] [2022-03-01 17:07:53,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-01 17:07:53,654 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:53,655 INFO L85 PathProgramCache]: Analyzing trace with hash 265435285, now seen corresponding path program 150 times [2022-03-01 17:07:53,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:53,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115147748] [2022-03-01 17:07:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:53,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:53,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:53,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115147748] [2022-03-01 17:07:53,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115147748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:53,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:53,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:53,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517532348] [2022-03-01 17:07:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:53,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:53,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:53,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:53,759 INFO L87 Difference]: Start difference. First operand 1531 states and 6048 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:53,875 INFO L93 Difference]: Finished difference Result 3202 states and 11791 transitions. [2022-03-01 17:07:53,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:53,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:53,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:53,882 INFO L225 Difference]: With dead ends: 3202 [2022-03-01 17:07:53,883 INFO L226 Difference]: Without dead ends: 2893 [2022-03-01 17:07:53,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:53,883 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 184 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 [2022-03-01 17:07:53,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 184 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:53,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2022-03-01 17:07:53,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1444. [2022-03-01 17:07:53,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.986832986832987) internal successors, (5753), 1443 states have internal predecessors, (5753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5753 transitions. [2022-03-01 17:07:53,915 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5753 transitions. Word has length 25 [2022-03-01 17:07:53,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:53,915 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5753 transitions. [2022-03-01 17:07:53,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5753 transitions. [2022-03-01 17:07:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:53,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:53,917 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] [2022-03-01 17:07:53,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-01 17:07:53,917 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:53,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1108663691, now seen corresponding path program 151 times [2022-03-01 17:07:53,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:53,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53012006] [2022-03-01 17:07:53,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:53,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:54,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:54,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53012006] [2022-03-01 17:07:54,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53012006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:54,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:54,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:54,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871610399] [2022-03-01 17:07:54,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:54,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:54,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:54,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:54,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:54,024 INFO L87 Difference]: Start difference. First operand 1444 states and 5753 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:54,117 INFO L93 Difference]: Finished difference Result 3001 states and 11117 transitions. [2022-03-01 17:07:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:54,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:54,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:54,124 INFO L225 Difference]: With dead ends: 3001 [2022-03-01 17:07:54,124 INFO L226 Difference]: Without dead ends: 2842 [2022-03-01 17:07:54,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:54,124 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 116 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:54,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 141 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:54,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-03-01 17:07:54,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1492. [2022-03-01 17:07:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 3.9818913480885314) internal successors, (5937), 1491 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5937 transitions. [2022-03-01 17:07:54,152 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5937 transitions. Word has length 25 [2022-03-01 17:07:54,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:54,152 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 5937 transitions. [2022-03-01 17:07:54,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5937 transitions. [2022-03-01 17:07:54,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:54,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:54,154 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] [2022-03-01 17:07:54,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-01 17:07:54,154 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:54,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:54,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2116961675, now seen corresponding path program 152 times [2022-03-01 17:07:54,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:54,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410937720] [2022-03-01 17:07:54,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:54,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:54,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:54,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:54,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410937720] [2022-03-01 17:07:54,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410937720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:54,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:54,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:54,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578775984] [2022-03-01 17:07:54,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:54,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:54,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:54,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:54,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:54,277 INFO L87 Difference]: Start difference. First operand 1492 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:54,370 INFO L93 Difference]: Finished difference Result 3064 states and 11324 transitions. [2022-03-01 17:07:54,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:54,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:54,376 INFO L225 Difference]: With dead ends: 3064 [2022-03-01 17:07:54,376 INFO L226 Difference]: Without dead ends: 2810 [2022-03-01 17:07:54,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:54,376 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:54,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-01 17:07:54,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1460. [2022-03-01 17:07:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9814941740918437) internal successors, (5809), 1459 states have internal predecessors, (5809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5809 transitions. [2022-03-01 17:07:54,403 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5809 transitions. Word has length 25 [2022-03-01 17:07:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:54,403 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5809 transitions. [2022-03-01 17:07:54,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5809 transitions. [2022-03-01 17:07:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:54,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:54,405 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] [2022-03-01 17:07:54,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-01 17:07:54,406 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:54,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1969882519, now seen corresponding path program 153 times [2022-03-01 17:07:54,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:54,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359550101] [2022-03-01 17:07:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:54,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:54,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:54,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:54,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359550101] [2022-03-01 17:07:54,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359550101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:54,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:54,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:54,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570100682] [2022-03-01 17:07:54,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:54,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:54,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:54,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:54,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:54,536 INFO L87 Difference]: Start difference. First operand 1460 states and 5809 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:54,636 INFO L93 Difference]: Finished difference Result 2906 states and 10766 transitions. [2022-03-01 17:07:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:54,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:54,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:54,642 INFO L225 Difference]: With dead ends: 2906 [2022-03-01 17:07:54,642 INFO L226 Difference]: Without dead ends: 2747 [2022-03-01 17:07:54,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:54,643 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:54,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 148 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:54,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2022-03-01 17:07:54,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 1476. [2022-03-01 17:07:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.9708474576271184) internal successors, (5857), 1475 states have internal predecessors, (5857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5857 transitions. [2022-03-01 17:07:54,669 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5857 transitions. Word has length 25 [2022-03-01 17:07:54,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:54,669 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5857 transitions. [2022-03-01 17:07:54,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5857 transitions. [2022-03-01 17:07:54,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:54,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:54,671 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] [2022-03-01 17:07:54,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-01 17:07:54,671 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:54,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash 27610519, now seen corresponding path program 154 times [2022-03-01 17:07:54,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:54,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389313357] [2022-03-01 17:07:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:54,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:54,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389313357] [2022-03-01 17:07:54,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389313357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:54,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:54,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:54,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261442896] [2022-03-01 17:07:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:54,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:54,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:54,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:54,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:54,791 INFO L87 Difference]: Start difference. First operand 1476 states and 5857 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:54,895 INFO L93 Difference]: Finished difference Result 2794 states and 10429 transitions. [2022-03-01 17:07:54,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:54,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:54,901 INFO L225 Difference]: With dead ends: 2794 [2022-03-01 17:07:54,901 INFO L226 Difference]: Without dead ends: 2603 [2022-03-01 17:07:54,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:54,901 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:54,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 129 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:54,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2022-03-01 17:07:54,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 1460. [2022-03-01 17:07:54,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.976010966415353) internal successors, (5801), 1459 states have internal predecessors, (5801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5801 transitions. [2022-03-01 17:07:54,929 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5801 transitions. Word has length 25 [2022-03-01 17:07:54,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:54,929 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5801 transitions. [2022-03-01 17:07:54,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:54,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5801 transitions. [2022-03-01 17:07:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:54,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:54,932 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] [2022-03-01 17:07:54,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-01 17:07:54,932 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:54,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:54,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1715856791, now seen corresponding path program 155 times [2022-03-01 17:07:54,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:54,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477936264] [2022-03-01 17:07:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:55,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:55,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477936264] [2022-03-01 17:07:55,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477936264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:55,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:55,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:55,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788728599] [2022-03-01 17:07:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:55,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:55,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:55,092 INFO L87 Difference]: Start difference. First operand 1460 states and 5801 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:55,211 INFO L93 Difference]: Finished difference Result 3041 states and 11257 transitions. [2022-03-01 17:07:55,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:55,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:55,228 INFO L225 Difference]: With dead ends: 3041 [2022-03-01 17:07:55,229 INFO L226 Difference]: Without dead ends: 2866 [2022-03-01 17:07:55,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:55,229 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:55,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2022-03-01 17:07:55,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 1500. [2022-03-01 17:07:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.963308872581721) internal successors, (5941), 1499 states have internal predecessors, (5941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5941 transitions. [2022-03-01 17:07:55,263 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5941 transitions. Word has length 25 [2022-03-01 17:07:55,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:55,263 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5941 transitions. [2022-03-01 17:07:55,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5941 transitions. [2022-03-01 17:07:55,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:55,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:55,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:55,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-01 17:07:55,266 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:55,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:55,267 INFO L85 PathProgramCache]: Analyzing trace with hash 60332405, now seen corresponding path program 156 times [2022-03-01 17:07:55,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:55,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261353673] [2022-03-01 17:07:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:55,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:55,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261353673] [2022-03-01 17:07:55,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261353673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:55,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:55,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:55,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432568398] [2022-03-01 17:07:55,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:55,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:55,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:55,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:55,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:55,402 INFO L87 Difference]: Start difference. First operand 1500 states and 5941 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:55,510 INFO L93 Difference]: Finished difference Result 2993 states and 11057 transitions. [2022-03-01 17:07:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:55,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:55,517 INFO L225 Difference]: With dead ends: 2993 [2022-03-01 17:07:55,518 INFO L226 Difference]: Without dead ends: 2715 [2022-03-01 17:07:55,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:55,518 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:55,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 143 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:55,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-03-01 17:07:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 1444. [2022-03-01 17:07:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9812889812889813) internal successors, (5745), 1443 states have internal predecessors, (5745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5745 transitions. [2022-03-01 17:07:55,560 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5745 transitions. Word has length 25 [2022-03-01 17:07:55,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:55,560 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5745 transitions. [2022-03-01 17:07:55,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5745 transitions. [2022-03-01 17:07:55,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:55,562 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:55,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:55,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-01 17:07:55,562 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:55,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1918566737, now seen corresponding path program 157 times [2022-03-01 17:07:55,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:55,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95074429] [2022-03-01 17:07:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:55,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:55,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95074429] [2022-03-01 17:07:55,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95074429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:55,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:55,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:55,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102742838] [2022-03-01 17:07:55,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:55,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:55,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:55,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:55,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:55,688 INFO L87 Difference]: Start difference. First operand 1444 states and 5745 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:55,798 INFO L93 Difference]: Finished difference Result 2895 states and 10717 transitions. [2022-03-01 17:07:55,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:55,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:55,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:55,805 INFO L225 Difference]: With dead ends: 2895 [2022-03-01 17:07:55,805 INFO L226 Difference]: Without dead ends: 2736 [2022-03-01 17:07:55,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:55,805 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:55,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 181 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:55,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-03-01 17:07:55,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 1468. [2022-03-01 17:07:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9734151329243352) internal successors, (5829), 1467 states have internal predecessors, (5829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5829 transitions. [2022-03-01 17:07:55,835 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5829 transitions. Word has length 25 [2022-03-01 17:07:55,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:55,835 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5829 transitions. [2022-03-01 17:07:55,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5829 transitions. [2022-03-01 17:07:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:55,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:55,837 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] [2022-03-01 17:07:55,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-01 17:07:55,838 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:55,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:55,838 INFO L85 PathProgramCache]: Analyzing trace with hash 328631987, now seen corresponding path program 158 times [2022-03-01 17:07:55,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:55,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760302814] [2022-03-01 17:07:55,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:55,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:55,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:55,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760302814] [2022-03-01 17:07:55,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760302814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:55,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:55,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:55,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35550398] [2022-03-01 17:07:55,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:55,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:55,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:55,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:55,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:55,925 INFO L87 Difference]: Start difference. First operand 1468 states and 5829 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:56,016 INFO L93 Difference]: Finished difference Result 2925 states and 10810 transitions. [2022-03-01 17:07:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:56,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:56,023 INFO L225 Difference]: With dead ends: 2925 [2022-03-01 17:07:56,023 INFO L226 Difference]: Without dead ends: 2720 [2022-03-01 17:07:56,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:56,024 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:56,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 161 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-03-01 17:07:56,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1452. [2022-03-01 17:07:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 3.9786354238456236) internal successors, (5773), 1451 states have internal predecessors, (5773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 5773 transitions. [2022-03-01 17:07:56,053 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 5773 transitions. Word has length 25 [2022-03-01 17:07:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:56,053 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 5773 transitions. [2022-03-01 17:07:56,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 5773 transitions. [2022-03-01 17:07:56,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:56,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:56,055 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] [2022-03-01 17:07:56,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-01 17:07:56,056 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash 423888179, now seen corresponding path program 159 times [2022-03-01 17:07:56,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:56,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890878193] [2022-03-01 17:07:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:56,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:56,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:56,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890878193] [2022-03-01 17:07:56,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890878193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:56,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:56,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:56,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848917730] [2022-03-01 17:07:56,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:56,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:56,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:56,140 INFO L87 Difference]: Start difference. First operand 1452 states and 5773 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:56,214 INFO L93 Difference]: Finished difference Result 2849 states and 10552 transitions. [2022-03-01 17:07:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:56,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:56,221 INFO L225 Difference]: With dead ends: 2849 [2022-03-01 17:07:56,221 INFO L226 Difference]: Without dead ends: 2690 [2022-03-01 17:07:56,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:56,222 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:56,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 154 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:56,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-03-01 17:07:56,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1468. [2022-03-01 17:07:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9679618268575325) internal successors, (5821), 1467 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5821 transitions. [2022-03-01 17:07:56,253 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5821 transitions. Word has length 25 [2022-03-01 17:07:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:56,254 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5821 transitions. [2022-03-01 17:07:56,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5821 transitions. [2022-03-01 17:07:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:56,256 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:56,256 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] [2022-03-01 17:07:56,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-01 17:07:56,256 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:56,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1518383821, now seen corresponding path program 160 times [2022-03-01 17:07:56,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:56,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879251095] [2022-03-01 17:07:56,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:56,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:56,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:56,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879251095] [2022-03-01 17:07:56,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879251095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:56,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:56,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:56,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385320377] [2022-03-01 17:07:56,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:56,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:56,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:56,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:56,335 INFO L87 Difference]: Start difference. First operand 1468 states and 5821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:56,429 INFO L93 Difference]: Finished difference Result 2737 states and 10215 transitions. [2022-03-01 17:07:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:56,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:56,435 INFO L225 Difference]: With dead ends: 2737 [2022-03-01 17:07:56,435 INFO L226 Difference]: Without dead ends: 2546 [2022-03-01 17:07:56,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:56,435 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 183 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 [2022-03-01 17:07:56,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 183 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2022-03-01 17:07:56,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1452. [2022-03-01 17:07:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 3.9731219848380426) internal successors, (5765), 1451 states have internal predecessors, (5765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 5765 transitions. [2022-03-01 17:07:56,465 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 5765 transitions. Word has length 25 [2022-03-01 17:07:56,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:56,465 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 5765 transitions. [2022-03-01 17:07:56,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 5765 transitions. [2022-03-01 17:07:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:56,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:56,467 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] [2022-03-01 17:07:56,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-01 17:07:56,467 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:56,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1841050133, now seen corresponding path program 161 times [2022-03-01 17:07:56,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:56,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716650490] [2022-03-01 17:07:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:56,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:56,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:56,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716650490] [2022-03-01 17:07:56,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716650490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:56,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:56,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:56,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999058238] [2022-03-01 17:07:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:56,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:56,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:56,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:56,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:56,573 INFO L87 Difference]: Start difference. First operand 1452 states and 5765 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:56,653 INFO L93 Difference]: Finished difference Result 2887 states and 10689 transitions. [2022-03-01 17:07:56,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:56,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:56,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:56,659 INFO L225 Difference]: With dead ends: 2887 [2022-03-01 17:07:56,659 INFO L226 Difference]: Without dead ends: 2698 [2022-03-01 17:07:56,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:56,660 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 109 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:56,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:07:56,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-03-01 17:07:56,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 1476. [2022-03-01 17:07:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1475 states have (on average 3.96) internal successors, (5841), 1475 states have internal predecessors, (5841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 5841 transitions. [2022-03-01 17:07:56,689 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 5841 transitions. Word has length 25 [2022-03-01 17:07:56,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:56,689 INFO L470 AbstractCegarLoop]: Abstraction has 1476 states and 5841 transitions. [2022-03-01 17:07:56,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 5841 transitions. [2022-03-01 17:07:56,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:56,692 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:56,692 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] [2022-03-01 17:07:56,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-01 17:07:56,692 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:56,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:56,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1100098035, now seen corresponding path program 162 times [2022-03-01 17:07:56,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:56,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025854561] [2022-03-01 17:07:56,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:56,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:56,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:56,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025854561] [2022-03-01 17:07:56,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025854561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:56,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:56,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:56,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264659986] [2022-03-01 17:07:56,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:56,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:56,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:56,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:56,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:56,778 INFO L87 Difference]: Start difference. First operand 1476 states and 5841 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:56,859 INFO L93 Difference]: Finished difference Result 2745 states and 10235 transitions. [2022-03-01 17:07:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:56,859 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:56,866 INFO L225 Difference]: With dead ends: 2745 [2022-03-01 17:07:56,866 INFO L226 Difference]: Without dead ends: 2538 [2022-03-01 17:07:56,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:56,866 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 95 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:56,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 146 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-03-01 17:07:56,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1444. [2022-03-01 17:07:56,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9785169785169785) internal successors, (5741), 1443 states have internal predecessors, (5741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5741 transitions. [2022-03-01 17:07:56,898 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5741 transitions. Word has length 25 [2022-03-01 17:07:56,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:56,898 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5741 transitions. [2022-03-01 17:07:56,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:56,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5741 transitions. [2022-03-01 17:07:56,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:56,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:56,900 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] [2022-03-01 17:07:56,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-01 17:07:56,901 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:56,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1548703881, now seen corresponding path program 163 times [2022-03-01 17:07:56,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:56,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534788796] [2022-03-01 17:07:56,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:56,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:56,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:56,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534788796] [2022-03-01 17:07:56,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534788796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:56,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:56,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:56,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737294085] [2022-03-01 17:07:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:56,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:56,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:56,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:56,992 INFO L87 Difference]: Start difference. First operand 1444 states and 5741 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:57,104 INFO L93 Difference]: Finished difference Result 3119 states and 11567 transitions. [2022-03-01 17:07:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:57,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:57,112 INFO L225 Difference]: With dead ends: 3119 [2022-03-01 17:07:57,112 INFO L226 Difference]: Without dead ends: 2930 [2022-03-01 17:07:57,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:57,113 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:57,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 153 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-01 17:07:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1496. [2022-03-01 17:07:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 3.97123745819398) internal successors, (5937), 1495 states have internal predecessors, (5937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5937 transitions. [2022-03-01 17:07:57,155 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5937 transitions. Word has length 25 [2022-03-01 17:07:57,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:57,156 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5937 transitions. [2022-03-01 17:07:57,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5937 transitions. [2022-03-01 17:07:57,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:57,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:57,159 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] [2022-03-01 17:07:57,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-01 17:07:57,159 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:57,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:57,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2005311317, now seen corresponding path program 164 times [2022-03-01 17:07:57,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:57,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742651758] [2022-03-01 17:07:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:57,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:57,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:57,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742651758] [2022-03-01 17:07:57,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742651758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:57,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:57,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:57,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101025136] [2022-03-01 17:07:57,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:57,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:57,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:57,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:57,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:57,308 INFO L87 Difference]: Start difference. First operand 1496 states and 5937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:57,462 INFO L93 Difference]: Finished difference Result 3105 states and 11498 transitions. [2022-03-01 17:07:57,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:57,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:57,471 INFO L225 Difference]: With dead ends: 3105 [2022-03-01 17:07:57,471 INFO L226 Difference]: Without dead ends: 2906 [2022-03-01 17:07:57,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:57,472 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:57,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 156 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:57,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2022-03-01 17:07:57,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 1472. [2022-03-01 17:07:57,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.976206662134602) internal successors, (5849), 1471 states have internal predecessors, (5849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5849 transitions. [2022-03-01 17:07:57,510 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5849 transitions. Word has length 25 [2022-03-01 17:07:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:57,510 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5849 transitions. [2022-03-01 17:07:57,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5849 transitions. [2022-03-01 17:07:57,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:57,513 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:57,513 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] [2022-03-01 17:07:57,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-01 17:07:57,513 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:57,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:57,513 INFO L85 PathProgramCache]: Analyzing trace with hash 925227989, now seen corresponding path program 165 times [2022-03-01 17:07:57,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:57,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380333629] [2022-03-01 17:07:57,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:57,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:57,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:57,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380333629] [2022-03-01 17:07:57,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380333629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:57,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:57,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:57,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538289369] [2022-03-01 17:07:57,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:57,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:57,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:57,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:57,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:57,609 INFO L87 Difference]: Start difference. First operand 1472 states and 5849 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:57,696 INFO L93 Difference]: Finished difference Result 3142 states and 11614 transitions. [2022-03-01 17:07:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:57,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:57,704 INFO L225 Difference]: With dead ends: 3142 [2022-03-01 17:07:57,704 INFO L226 Difference]: Without dead ends: 2953 [2022-03-01 17:07:57,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:57,704 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:57,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 142 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:57,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2022-03-01 17:07:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 1535. [2022-03-01 17:07:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.9478487614080833) internal successors, (6056), 1534 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6056 transitions. [2022-03-01 17:07:57,736 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6056 transitions. Word has length 25 [2022-03-01 17:07:57,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:57,736 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6056 transitions. [2022-03-01 17:07:57,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6056 transitions. [2022-03-01 17:07:57,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:57,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:57,739 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] [2022-03-01 17:07:57,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-01 17:07:57,739 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:57,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:57,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1349786411, now seen corresponding path program 166 times [2022-03-01 17:07:57,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:57,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859690688] [2022-03-01 17:07:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:57,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:57,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:57,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859690688] [2022-03-01 17:07:57,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859690688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:57,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:57,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:57,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372900044] [2022-03-01 17:07:57,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:57,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:57,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:57,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:57,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:57,817 INFO L87 Difference]: Start difference. First operand 1535 states and 6056 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:57,907 INFO L93 Difference]: Finished difference Result 3175 states and 11697 transitions. [2022-03-01 17:07:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:57,907 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:57,914 INFO L225 Difference]: With dead ends: 3175 [2022-03-01 17:07:57,914 INFO L226 Difference]: Without dead ends: 2890 [2022-03-01 17:07:57,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:57,914 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 99 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 179 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 [2022-03-01 17:07:57,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 179 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2022-03-01 17:07:57,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 1472. [2022-03-01 17:07:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.957171991842284) internal successors, (5821), 1471 states have internal predecessors, (5821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5821 transitions. [2022-03-01 17:07:57,944 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5821 transitions. Word has length 25 [2022-03-01 17:07:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:57,944 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5821 transitions. [2022-03-01 17:07:57,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5821 transitions. [2022-03-01 17:07:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:57,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:57,946 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] [2022-03-01 17:07:57,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-01 17:07:57,947 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:57,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 671395123, now seen corresponding path program 167 times [2022-03-01 17:07:57,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:57,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527816172] [2022-03-01 17:07:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:57,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:58,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:58,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:58,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527816172] [2022-03-01 17:07:58,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527816172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:58,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:58,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:58,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315123441] [2022-03-01 17:07:58,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:58,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:58,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:58,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:58,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:58,092 INFO L87 Difference]: Start difference. First operand 1472 states and 5821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:58,208 INFO L93 Difference]: Finished difference Result 3091 states and 11422 transitions. [2022-03-01 17:07:58,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:58,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:58,215 INFO L225 Difference]: With dead ends: 3091 [2022-03-01 17:07:58,215 INFO L226 Difference]: Without dead ends: 2916 [2022-03-01 17:07:58,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:58,216 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:58,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:58,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2022-03-01 17:07:58,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1512. [2022-03-01 17:07:58,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1511 states have (on average 3.9450694904037062) internal successors, (5961), 1511 states have internal predecessors, (5961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 5961 transitions. [2022-03-01 17:07:58,245 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 5961 transitions. Word has length 25 [2022-03-01 17:07:58,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:58,246 INFO L470 AbstractCegarLoop]: Abstraction has 1512 states and 5961 transitions. [2022-03-01 17:07:58,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 5961 transitions. [2022-03-01 17:07:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:58,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:58,248 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] [2022-03-01 17:07:58,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-01 17:07:58,248 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:58,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:58,248 INFO L85 PathProgramCache]: Analyzing trace with hash 889746709, now seen corresponding path program 168 times [2022-03-01 17:07:58,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:58,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874549352] [2022-03-01 17:07:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:58,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:58,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874549352] [2022-03-01 17:07:58,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874549352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:58,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:58,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:58,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483265022] [2022-03-01 17:07:58,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:58,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:58,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:58,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:58,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:58,369 INFO L87 Difference]: Start difference. First operand 1512 states and 5961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:58,452 INFO L93 Difference]: Finished difference Result 3043 states and 11222 transitions. [2022-03-01 17:07:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:58,452 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:58,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:58,460 INFO L225 Difference]: With dead ends: 3043 [2022-03-01 17:07:58,460 INFO L226 Difference]: Without dead ends: 2741 [2022-03-01 17:07:58,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:58,461 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 100 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:58,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 148 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:58,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-03-01 17:07:58,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1432. [2022-03-01 17:07:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.9853249475890986) internal successors, (5703), 1431 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5703 transitions. [2022-03-01 17:07:58,498 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5703 transitions. Word has length 25 [2022-03-01 17:07:58,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:58,498 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5703 transitions. [2022-03-01 17:07:58,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5703 transitions. [2022-03-01 17:07:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:58,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:58,501 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] [2022-03-01 17:07:58,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-01 17:07:58,502 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:58,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash 334087797, now seen corresponding path program 169 times [2022-03-01 17:07:58,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:58,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443936429] [2022-03-01 17:07:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:58,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:58,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:58,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443936429] [2022-03-01 17:07:58,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443936429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:58,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:58,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:58,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18868528] [2022-03-01 17:07:58,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:58,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:58,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:58,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:58,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:58,588 INFO L87 Difference]: Start difference. First operand 1432 states and 5703 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:58,693 INFO L93 Difference]: Finished difference Result 3020 states and 11214 transitions. [2022-03-01 17:07:58,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:58,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:58,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:58,703 INFO L225 Difference]: With dead ends: 3020 [2022-03-01 17:07:58,703 INFO L226 Difference]: Without dead ends: 2861 [2022-03-01 17:07:58,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:58,703 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:58,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:58,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2022-03-01 17:07:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 1488. [2022-03-01 17:07:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.9858776059179557) internal successors, (5927), 1487 states have internal predecessors, (5927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5927 transitions. [2022-03-01 17:07:58,747 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5927 transitions. Word has length 25 [2022-03-01 17:07:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:58,747 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5927 transitions. [2022-03-01 17:07:58,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5927 transitions. [2022-03-01 17:07:58,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:58,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:58,750 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] [2022-03-01 17:07:58,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-01 17:07:58,750 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:58,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:58,751 INFO L85 PathProgramCache]: Analyzing trace with hash -674210187, now seen corresponding path program 170 times [2022-03-01 17:07:58,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:58,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275809724] [2022-03-01 17:07:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:58,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:58,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:58,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275809724] [2022-03-01 17:07:58,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275809724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:58,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:58,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:58,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806214775] [2022-03-01 17:07:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:58,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:58,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:58,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:58,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:58,838 INFO L87 Difference]: Start difference. First operand 1488 states and 5927 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:58,918 INFO L93 Difference]: Finished difference Result 3083 states and 11421 transitions. [2022-03-01 17:07:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:58,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:58,925 INFO L225 Difference]: With dead ends: 3083 [2022-03-01 17:07:58,925 INFO L226 Difference]: Without dead ends: 2829 [2022-03-01 17:07:58,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:58,925 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 112 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:58,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 155 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:58,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2022-03-01 17:07:58,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1456. [2022-03-01 17:07:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9855670103092784) internal successors, (5799), 1455 states have internal predecessors, (5799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5799 transitions. [2022-03-01 17:07:58,955 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5799 transitions. Word has length 25 [2022-03-01 17:07:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:58,955 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5799 transitions. [2022-03-01 17:07:58,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5799 transitions. [2022-03-01 17:07:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:58,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:58,958 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] [2022-03-01 17:07:58,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-01 17:07:58,958 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1323121303, now seen corresponding path program 171 times [2022-03-01 17:07:58,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:58,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233845891] [2022-03-01 17:07:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:58,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:59,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:59,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233845891] [2022-03-01 17:07:59,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233845891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:59,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:59,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:59,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645624703] [2022-03-01 17:07:59,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:59,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:59,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:59,042 INFO L87 Difference]: Start difference. First operand 1456 states and 5799 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:59,139 INFO L93 Difference]: Finished difference Result 2969 states and 11015 transitions. [2022-03-01 17:07:59,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:59,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:59,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:59,148 INFO L225 Difference]: With dead ends: 2969 [2022-03-01 17:07:59,148 INFO L226 Difference]: Without dead ends: 2810 [2022-03-01 17:07:59,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:59,150 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:59,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-01 17:07:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1472. [2022-03-01 17:07:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9748470428280083) internal successors, (5847), 1471 states have internal predecessors, (5847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5847 transitions. [2022-03-01 17:07:59,182 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5847 transitions. Word has length 25 [2022-03-01 17:07:59,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:59,182 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5847 transitions. [2022-03-01 17:07:59,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5847 transitions. [2022-03-01 17:07:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:59,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:59,185 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] [2022-03-01 17:07:59,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-01 17:07:59,185 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:59,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:59,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1963548009, now seen corresponding path program 172 times [2022-03-01 17:07:59,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:59,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12730057] [2022-03-01 17:07:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:59,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:59,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:59,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12730057] [2022-03-01 17:07:59,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12730057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:59,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:59,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:59,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051551245] [2022-03-01 17:07:59,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:59,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:59,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:59,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:59,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:59,271 INFO L87 Difference]: Start difference. First operand 1472 states and 5847 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:59,353 INFO L93 Difference]: Finished difference Result 2997 states and 11103 transitions. [2022-03-01 17:07:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:59,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:59,359 INFO L225 Difference]: With dead ends: 2997 [2022-03-01 17:07:59,360 INFO L226 Difference]: Without dead ends: 2794 [2022-03-01 17:07:59,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:59,360 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:59,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 152 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-03-01 17:07:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1456. [2022-03-01 17:07:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.980068728522337) internal successors, (5791), 1455 states have internal predecessors, (5791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5791 transitions. [2022-03-01 17:07:59,390 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5791 transitions. Word has length 25 [2022-03-01 17:07:59,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:59,390 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5791 transitions. [2022-03-01 17:07:59,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5791 transitions. [2022-03-01 17:07:59,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:59,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:59,393 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] [2022-03-01 17:07:59,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-01 17:07:59,393 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:59,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash -275301737, now seen corresponding path program 173 times [2022-03-01 17:07:59,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:59,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423861304] [2022-03-01 17:07:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:59,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:59,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:59,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:59,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423861304] [2022-03-01 17:07:59,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423861304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:59,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:59,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:59,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590639500] [2022-03-01 17:07:59,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:59,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:59,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:59,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:59,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:59,501 INFO L87 Difference]: Start difference. First operand 1456 states and 5791 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:59,597 INFO L93 Difference]: Finished difference Result 3090 states and 11457 transitions. [2022-03-01 17:07:59,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:59,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:59,604 INFO L225 Difference]: With dead ends: 3090 [2022-03-01 17:07:59,605 INFO L226 Difference]: Without dead ends: 2903 [2022-03-01 17:07:59,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:59,605 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 98 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:59,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 160 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2022-03-01 17:07:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 1502. [2022-03-01 17:07:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.9626915389740174) internal successors, (5948), 1501 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5948 transitions. [2022-03-01 17:07:59,635 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5948 transitions. Word has length 25 [2022-03-01 17:07:59,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:59,635 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5948 transitions. [2022-03-01 17:07:59,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5948 transitions. [2022-03-01 17:07:59,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:59,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:59,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:07:59,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-01 17:07:59,638 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:59,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:59,638 INFO L85 PathProgramCache]: Analyzing trace with hash -628441227, now seen corresponding path program 174 times [2022-03-01 17:07:59,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:59,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192040950] [2022-03-01 17:07:59,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:59,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:59,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:59,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192040950] [2022-03-01 17:07:59,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192040950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:59,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:59,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:59,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566368707] [2022-03-01 17:07:59,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:59,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:59,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:59,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:59,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:59,727 INFO L87 Difference]: Start difference. First operand 1502 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:07:59,805 INFO L93 Difference]: Finished difference Result 3125 states and 11546 transitions. [2022-03-01 17:07:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:07:59,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:07:59,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:07:59,812 INFO L225 Difference]: With dead ends: 3125 [2022-03-01 17:07:59,813 INFO L226 Difference]: Without dead ends: 2841 [2022-03-01 17:07:59,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:07:59,813 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 116 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:07:59,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:07:59,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2022-03-01 17:07:59,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1440. [2022-03-01 17:07:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.985406532314107) internal successors, (5735), 1439 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5735 transitions. [2022-03-01 17:07:59,848 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5735 transitions. Word has length 25 [2022-03-01 17:07:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:07:59,848 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5735 transitions. [2022-03-01 17:07:59,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:07:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5735 transitions. [2022-03-01 17:07:59,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:07:59,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:07:59,850 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] [2022-03-01 17:07:59,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-01 17:07:59,851 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:07:59,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:07:59,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1735205335, now seen corresponding path program 175 times [2022-03-01 17:07:59,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:07:59,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285654445] [2022-03-01 17:07:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:07:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:07:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:07:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:07:59,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:07:59,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285654445] [2022-03-01 17:07:59,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285654445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:07:59,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:07:59,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:07:59,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380400339] [2022-03-01 17:07:59,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:07:59,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:07:59,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:07:59,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:07:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:07:59,932 INFO L87 Difference]: Start difference. First operand 1440 states and 5735 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:00,008 INFO L93 Difference]: Finished difference Result 2970 states and 11015 transitions. [2022-03-01 17:08:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:00,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:00,016 INFO L225 Difference]: With dead ends: 2970 [2022-03-01 17:08:00,016 INFO L226 Difference]: Without dead ends: 2811 [2022-03-01 17:08:00,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:00,016 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 115 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:00,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 144 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:00,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2022-03-01 17:08:00,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1488. [2022-03-01 17:08:00,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1487 states have (on average 3.980497646267653) internal successors, (5919), 1487 states have internal predecessors, (5919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 5919 transitions. [2022-03-01 17:08:00,051 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 5919 transitions. Word has length 25 [2022-03-01 17:08:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:00,051 INFO L470 AbstractCegarLoop]: Abstraction has 1488 states and 5919 transitions. [2022-03-01 17:08:00,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 5919 transitions. [2022-03-01 17:08:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:00,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:00,053 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] [2022-03-01 17:08:00,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-01 17:08:00,054 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:00,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash 726907351, now seen corresponding path program 176 times [2022-03-01 17:08:00,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:00,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188794021] [2022-03-01 17:08:00,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:00,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:00,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:00,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188794021] [2022-03-01 17:08:00,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188794021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:00,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:00,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:00,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675928490] [2022-03-01 17:08:00,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:00,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:00,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:00,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:00,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:00,136 INFO L87 Difference]: Start difference. First operand 1488 states and 5919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:00,209 INFO L93 Difference]: Finished difference Result 3033 states and 11222 transitions. [2022-03-01 17:08:00,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:00,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:00,216 INFO L225 Difference]: With dead ends: 3033 [2022-03-01 17:08:00,217 INFO L226 Difference]: Without dead ends: 2779 [2022-03-01 17:08:00,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:00,217 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:00,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 150 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:00,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2022-03-01 17:08:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1456. [2022-03-01 17:08:00,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.980068728522337) internal successors, (5791), 1455 states have internal predecessors, (5791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5791 transitions. [2022-03-01 17:08:00,247 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5791 transitions. Word has length 25 [2022-03-01 17:08:00,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:00,247 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5791 transitions. [2022-03-01 17:08:00,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5791 transitions. [2022-03-01 17:08:00,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:00,249 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:00,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:00,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-01 17:08:00,249 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:00,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:00,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1519203945, now seen corresponding path program 177 times [2022-03-01 17:08:00,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:00,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253149525] [2022-03-01 17:08:00,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:00,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:00,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:00,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:00,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253149525] [2022-03-01 17:08:00,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253149525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:00,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:00,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:00,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015323222] [2022-03-01 17:08:00,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:00,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:00,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:00,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:00,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:00,339 INFO L87 Difference]: Start difference. First operand 1456 states and 5791 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:00,424 INFO L93 Difference]: Finished difference Result 2875 states and 10664 transitions. [2022-03-01 17:08:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:00,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:00,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:00,431 INFO L225 Difference]: With dead ends: 2875 [2022-03-01 17:08:00,431 INFO L226 Difference]: Without dead ends: 2716 [2022-03-01 17:08:00,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:00,432 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:00,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:00,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-03-01 17:08:00,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1472. [2022-03-01 17:08:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9694085656016314) internal successors, (5839), 1471 states have internal predecessors, (5839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5839 transitions. [2022-03-01 17:08:00,462 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5839 transitions. Word has length 25 [2022-03-01 17:08:00,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:00,462 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5839 transitions. [2022-03-01 17:08:00,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5839 transitions. [2022-03-01 17:08:00,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:00,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:00,465 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] [2022-03-01 17:08:00,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-01 17:08:00,465 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:00,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:00,465 INFO L85 PathProgramCache]: Analyzing trace with hash 833491351, now seen corresponding path program 178 times [2022-03-01 17:08:00,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:00,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752577885] [2022-03-01 17:08:00,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:00,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:00,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752577885] [2022-03-01 17:08:00,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752577885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:00,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:00,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:00,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207821286] [2022-03-01 17:08:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:00,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:00,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:00,544 INFO L87 Difference]: Start difference. First operand 1472 states and 5839 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:00,623 INFO L93 Difference]: Finished difference Result 2763 states and 10327 transitions. [2022-03-01 17:08:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:00,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:00,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:00,629 INFO L225 Difference]: With dead ends: 2763 [2022-03-01 17:08:00,630 INFO L226 Difference]: Without dead ends: 2572 [2022-03-01 17:08:00,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:00,630 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 93 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:00,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 144 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:00,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2022-03-01 17:08:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 1456. [2022-03-01 17:08:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9745704467353953) internal successors, (5783), 1455 states have internal predecessors, (5783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5783 transitions. [2022-03-01 17:08:00,658 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5783 transitions. Word has length 25 [2022-03-01 17:08:00,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:00,659 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5783 transitions. [2022-03-01 17:08:00,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5783 transitions. [2022-03-01 17:08:00,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:00,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:00,661 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] [2022-03-01 17:08:00,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-01 17:08:00,661 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:00,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1773229673, now seen corresponding path program 179 times [2022-03-01 17:08:00,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:00,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867258088] [2022-03-01 17:08:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:00,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:00,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:00,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867258088] [2022-03-01 17:08:00,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867258088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:00,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:00,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:00,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81526590] [2022-03-01 17:08:00,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:00,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:00,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:00,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:00,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:00,759 INFO L87 Difference]: Start difference. First operand 1456 states and 5783 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:00,847 INFO L93 Difference]: Finished difference Result 3010 states and 11155 transitions. [2022-03-01 17:08:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:00,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:00,855 INFO L225 Difference]: With dead ends: 3010 [2022-03-01 17:08:00,855 INFO L226 Difference]: Without dead ends: 2835 [2022-03-01 17:08:00,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:00,855 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:00,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 144 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-03-01 17:08:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 1496. [2022-03-01 17:08:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1496 states, 1495 states have (on average 3.9618729096989966) internal successors, (5923), 1495 states have internal predecessors, (5923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 5923 transitions. [2022-03-01 17:08:00,888 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 5923 transitions. Word has length 25 [2022-03-01 17:08:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:00,888 INFO L470 AbstractCegarLoop]: Abstraction has 1496 states and 5923 transitions. [2022-03-01 17:08:00,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:00,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 5923 transitions. [2022-03-01 17:08:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:00,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:00,890 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] [2022-03-01 17:08:00,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-01 17:08:00,890 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:00,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:00,890 INFO L85 PathProgramCache]: Analyzing trace with hash 866213237, now seen corresponding path program 180 times [2022-03-01 17:08:00,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:00,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095033069] [2022-03-01 17:08:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:00,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:00,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095033069] [2022-03-01 17:08:00,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095033069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:00,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:00,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:00,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618758855] [2022-03-01 17:08:00,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:00,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:00,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:00,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:00,974 INFO L87 Difference]: Start difference. First operand 1496 states and 5923 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:01,059 INFO L93 Difference]: Finished difference Result 2962 states and 10955 transitions. [2022-03-01 17:08:01,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:01,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:01,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:01,066 INFO L225 Difference]: With dead ends: 2962 [2022-03-01 17:08:01,066 INFO L226 Difference]: Without dead ends: 2684 [2022-03-01 17:08:01,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:01,066 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:01,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 158 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-01 17:08:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1440. [2022-03-01 17:08:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.9798471160528144) internal successors, (5727), 1439 states have internal predecessors, (5727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5727 transitions. [2022-03-01 17:08:01,098 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5727 transitions. Word has length 25 [2022-03-01 17:08:01,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:01,098 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5727 transitions. [2022-03-01 17:08:01,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5727 transitions. [2022-03-01 17:08:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:01,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:01,101 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] [2022-03-01 17:08:01,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-01 17:08:01,101 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash 573562169, now seen corresponding path program 181 times [2022-03-01 17:08:01,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:01,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665669907] [2022-03-01 17:08:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:01,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:01,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:01,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:01,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665669907] [2022-03-01 17:08:01,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665669907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:01,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:01,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:01,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522276254] [2022-03-01 17:08:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:01,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:01,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:01,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:01,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:01,181 INFO L87 Difference]: Start difference. First operand 1440 states and 5727 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:01,270 INFO L93 Difference]: Finished difference Result 2860 states and 10605 transitions. [2022-03-01 17:08:01,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:01,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:01,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:01,279 INFO L225 Difference]: With dead ends: 2860 [2022-03-01 17:08:01,279 INFO L226 Difference]: Without dead ends: 2701 [2022-03-01 17:08:01,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:01,279 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:01,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 140 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:01,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-03-01 17:08:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1464. [2022-03-01 17:08:01,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.971975393028025) internal successors, (5811), 1463 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5811 transitions. [2022-03-01 17:08:01,317 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5811 transitions. Word has length 25 [2022-03-01 17:08:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:01,317 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5811 transitions. [2022-03-01 17:08:01,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5811 transitions. [2022-03-01 17:08:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:01,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:01,319 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] [2022-03-01 17:08:01,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-01 17:08:01,320 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:01,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1581860153, now seen corresponding path program 182 times [2022-03-01 17:08:01,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:01,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268204787] [2022-03-01 17:08:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:01,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:01,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:01,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268204787] [2022-03-01 17:08:01,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268204787] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:01,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:01,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:01,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433885705] [2022-03-01 17:08:01,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:01,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:01,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:01,403 INFO L87 Difference]: Start difference. First operand 1464 states and 5811 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:01,496 INFO L93 Difference]: Finished difference Result 2888 states and 10693 transitions. [2022-03-01 17:08:01,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:01,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:01,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:01,503 INFO L225 Difference]: With dead ends: 2888 [2022-03-01 17:08:01,503 INFO L226 Difference]: Without dead ends: 2685 [2022-03-01 17:08:01,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:01,504 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 93 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:01,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 184 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:01,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-03-01 17:08:01,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1448. [2022-03-01 17:08:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.977194194885971) internal successors, (5755), 1447 states have internal predecessors, (5755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5755 transitions. [2022-03-01 17:08:01,534 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5755 transitions. Word has length 25 [2022-03-01 17:08:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:01,534 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5755 transitions. [2022-03-01 17:08:01,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5755 transitions. [2022-03-01 17:08:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:01,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:01,536 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] [2022-03-01 17:08:01,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-01 17:08:01,536 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:01,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:01,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1542517481, now seen corresponding path program 183 times [2022-03-01 17:08:01,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:01,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958600025] [2022-03-01 17:08:01,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:01,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:01,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:01,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958600025] [2022-03-01 17:08:01,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958600025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:01,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:01,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:01,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150029648] [2022-03-01 17:08:01,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:01,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:01,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:01,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:01,631 INFO L87 Difference]: Start difference. First operand 1448 states and 5755 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:01,725 INFO L93 Difference]: Finished difference Result 2816 states and 10445 transitions. [2022-03-01 17:08:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:01,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:01,733 INFO L225 Difference]: With dead ends: 2816 [2022-03-01 17:08:01,733 INFO L226 Difference]: Without dead ends: 2657 [2022-03-01 17:08:01,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:01,733 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 126 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:01,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 137 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2022-03-01 17:08:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 1464. [2022-03-01 17:08:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9665071770334928) internal successors, (5803), 1463 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5803 transitions. [2022-03-01 17:08:01,772 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5803 transitions. Word has length 25 [2022-03-01 17:08:01,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:01,772 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5803 transitions. [2022-03-01 17:08:01,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5803 transitions. [2022-03-01 17:08:01,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:01,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:01,777 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] [2022-03-01 17:08:01,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-01 17:08:01,777 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:01,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:01,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2106918201, now seen corresponding path program 184 times [2022-03-01 17:08:01,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:01,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132721489] [2022-03-01 17:08:01,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:01,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:01,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:01,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132721489] [2022-03-01 17:08:01,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132721489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:01,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:01,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:01,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813294473] [2022-03-01 17:08:01,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:01,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:01,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:01,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:01,928 INFO L87 Difference]: Start difference. First operand 1464 states and 5803 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:02,035 INFO L93 Difference]: Finished difference Result 2704 states and 10108 transitions. [2022-03-01 17:08:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:02,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:02,040 INFO L225 Difference]: With dead ends: 2704 [2022-03-01 17:08:02,041 INFO L226 Difference]: Without dead ends: 2513 [2022-03-01 17:08:02,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:02,041 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:02,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 145 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:02,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2022-03-01 17:08:02,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 1448. [2022-03-01 17:08:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9716655148583278) internal successors, (5747), 1447 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5747 transitions. [2022-03-01 17:08:02,066 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5747 transitions. Word has length 25 [2022-03-01 17:08:02,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:02,066 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5747 transitions. [2022-03-01 17:08:02,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5747 transitions. [2022-03-01 17:08:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:02,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:02,069 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] [2022-03-01 17:08:02,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-01 17:08:02,069 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:02,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:02,070 INFO L85 PathProgramCache]: Analyzing trace with hash -925725383, now seen corresponding path program 185 times [2022-03-01 17:08:02,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:02,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33448208] [2022-03-01 17:08:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:02,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:02,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:02,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33448208] [2022-03-01 17:08:02,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33448208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:02,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:02,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:02,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84146100] [2022-03-01 17:08:02,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:02,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:02,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:02,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:02,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:02,186 INFO L87 Difference]: Start difference. First operand 1448 states and 5747 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:02,281 INFO L93 Difference]: Finished difference Result 2852 states and 10577 transitions. [2022-03-01 17:08:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:02,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:02,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:02,287 INFO L225 Difference]: With dead ends: 2852 [2022-03-01 17:08:02,287 INFO L226 Difference]: Without dead ends: 2665 [2022-03-01 17:08:02,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:02,288 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:02,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:02,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-03-01 17:08:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1472. [2022-03-01 17:08:02,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9585316111488784) internal successors, (5823), 1471 states have internal predecessors, (5823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5823 transitions. [2022-03-01 17:08:02,313 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5823 transitions. Word has length 25 [2022-03-01 17:08:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:02,314 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5823 transitions. [2022-03-01 17:08:02,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5823 transitions. [2022-03-01 17:08:02,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:02,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:02,316 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] [2022-03-01 17:08:02,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-01 17:08:02,316 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:02,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1977097367, now seen corresponding path program 186 times [2022-03-01 17:08:02,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:02,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836236898] [2022-03-01 17:08:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:02,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:02,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:02,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836236898] [2022-03-01 17:08:02,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836236898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:02,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:02,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:02,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380183853] [2022-03-01 17:08:02,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:02,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:02,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:02,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:02,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:02,402 INFO L87 Difference]: Start difference. First operand 1472 states and 5823 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:02,510 INFO L93 Difference]: Finished difference Result 2712 states and 10128 transitions. [2022-03-01 17:08:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:02,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:02,516 INFO L225 Difference]: With dead ends: 2712 [2022-03-01 17:08:02,516 INFO L226 Difference]: Without dead ends: 2505 [2022-03-01 17:08:02,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:02,516 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 83 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 182 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 [2022-03-01 17:08:02,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 182 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-03-01 17:08:02,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1440. [2022-03-01 17:08:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.977067407922168) internal successors, (5723), 1439 states have internal predecessors, (5723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5723 transitions. [2022-03-01 17:08:02,541 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5723 transitions. Word has length 25 [2022-03-01 17:08:02,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:02,541 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5723 transitions. [2022-03-01 17:08:02,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5723 transitions. [2022-03-01 17:08:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:02,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:02,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:02,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-01 17:08:02,545 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:02,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash -2018695879, now seen corresponding path program 187 times [2022-03-01 17:08:02,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:02,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891983413] [2022-03-01 17:08:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:02,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:02,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:02,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891983413] [2022-03-01 17:08:02,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891983413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:02,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:02,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:02,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449717951] [2022-03-01 17:08:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:02,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:02,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:02,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:02,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:02,654 INFO L87 Difference]: Start difference. First operand 1440 states and 5723 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:02,734 INFO L93 Difference]: Finished difference Result 3057 states and 11371 transitions. [2022-03-01 17:08:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:02,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:02,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:02,741 INFO L225 Difference]: With dead ends: 3057 [2022-03-01 17:08:02,741 INFO L226 Difference]: Without dead ends: 2870 [2022-03-01 17:08:02,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:02,741 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:02,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 143 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2022-03-01 17:08:02,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 1484. [2022-03-01 17:08:02,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.9723533378287255) internal successors, (5891), 1483 states have internal predecessors, (5891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5891 transitions. [2022-03-01 17:08:02,771 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5891 transitions. Word has length 25 [2022-03-01 17:08:02,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:02,771 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5891 transitions. [2022-03-01 17:08:02,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5891 transitions. [2022-03-01 17:08:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:02,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:02,773 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] [2022-03-01 17:08:02,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-01 17:08:02,774 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:02,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash 884126871, now seen corresponding path program 188 times [2022-03-01 17:08:02,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:02,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507785030] [2022-03-01 17:08:02,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:02,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:02,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:02,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507785030] [2022-03-01 17:08:02,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507785030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:02,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:02,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:02,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946438230] [2022-03-01 17:08:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:02,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:02,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:02,850 INFO L87 Difference]: Start difference. First operand 1484 states and 5891 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:02,940 INFO L93 Difference]: Finished difference Result 3045 states and 11307 transitions. [2022-03-01 17:08:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:02,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:02,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:02,947 INFO L225 Difference]: With dead ends: 3045 [2022-03-01 17:08:02,947 INFO L226 Difference]: Without dead ends: 2846 [2022-03-01 17:08:02,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:02,947 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:02,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:02,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-03-01 17:08:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 1460. [2022-03-01 17:08:02,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.977381768334476) internal successors, (5803), 1459 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5803 transitions. [2022-03-01 17:08:02,979 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5803 transitions. Word has length 25 [2022-03-01 17:08:02,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:02,979 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5803 transitions. [2022-03-01 17:08:02,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:02,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5803 transitions. [2022-03-01 17:08:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:02,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:02,982 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] [2022-03-01 17:08:02,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-01 17:08:02,982 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash 455235991, now seen corresponding path program 189 times [2022-03-01 17:08:02,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:02,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39869532] [2022-03-01 17:08:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:03,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:03,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39869532] [2022-03-01 17:08:03,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39869532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:03,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:03,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:03,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662756122] [2022-03-01 17:08:03,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:03,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:03,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:03,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:03,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:03,059 INFO L87 Difference]: Start difference. First operand 1460 states and 5803 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:03,145 INFO L93 Difference]: Finished difference Result 3080 states and 11418 transitions. [2022-03-01 17:08:03,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:03,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:03,151 INFO L225 Difference]: With dead ends: 3080 [2022-03-01 17:08:03,151 INFO L226 Difference]: Without dead ends: 2893 [2022-03-01 17:08:03,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:03,152 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 98 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:03,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 156 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:03,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2022-03-01 17:08:03,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1506. [2022-03-01 17:08:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 3.9601328903654487) internal successors, (5960), 1505 states have internal predecessors, (5960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 5960 transitions. [2022-03-01 17:08:03,181 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 5960 transitions. Word has length 25 [2022-03-01 17:08:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:03,181 INFO L470 AbstractCegarLoop]: Abstraction has 1506 states and 5960 transitions. [2022-03-01 17:08:03,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 5960 transitions. [2022-03-01 17:08:03,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:03,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:03,184 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] [2022-03-01 17:08:03,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-01 17:08:03,184 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:03,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:03,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1823996439, now seen corresponding path program 190 times [2022-03-01 17:08:03,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:03,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447454433] [2022-03-01 17:08:03,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:03,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:03,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:03,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447454433] [2022-03-01 17:08:03,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447454433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:03,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:03,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:03,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321498459] [2022-03-01 17:08:03,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:03,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:03,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:03,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:03,265 INFO L87 Difference]: Start difference. First operand 1506 states and 5960 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:03,355 INFO L93 Difference]: Finished difference Result 3115 states and 11507 transitions. [2022-03-01 17:08:03,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:03,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:03,362 INFO L225 Difference]: With dead ends: 3115 [2022-03-01 17:08:03,362 INFO L226 Difference]: Without dead ends: 2847 [2022-03-01 17:08:03,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:03,362 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:03,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 179 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:03,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2022-03-01 17:08:03,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 1460. [2022-03-01 17:08:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9636737491432488) internal successors, (5783), 1459 states have internal predecessors, (5783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5783 transitions. [2022-03-01 17:08:03,391 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5783 transitions. Word has length 25 [2022-03-01 17:08:03,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:03,391 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5783 transitions. [2022-03-01 17:08:03,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5783 transitions. [2022-03-01 17:08:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:03,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:03,393 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] [2022-03-01 17:08:03,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-01 17:08:03,394 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash 819493365, now seen corresponding path program 191 times [2022-03-01 17:08:03,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:03,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781025736] [2022-03-01 17:08:03,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:03,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:03,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781025736] [2022-03-01 17:08:03,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781025736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:03,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:03,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:03,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294979320] [2022-03-01 17:08:03,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:03,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:03,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:03,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:03,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:03,492 INFO L87 Difference]: Start difference. First operand 1460 states and 5783 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:03,568 INFO L93 Difference]: Finished difference Result 3050 states and 11295 transitions. [2022-03-01 17:08:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:03,575 INFO L225 Difference]: With dead ends: 3050 [2022-03-01 17:08:03,575 INFO L226 Difference]: Without dead ends: 2875 [2022-03-01 17:08:03,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:03,575 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:03,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 136 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:03,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2022-03-01 17:08:03,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 1500. [2022-03-01 17:08:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1499 states have (on average 3.95130086724483) internal successors, (5923), 1499 states have internal predecessors, (5923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 5923 transitions. [2022-03-01 17:08:03,604 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 5923 transitions. Word has length 25 [2022-03-01 17:08:03,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:03,604 INFO L470 AbstractCegarLoop]: Abstraction has 1500 states and 5923 transitions. [2022-03-01 17:08:03,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 5923 transitions. [2022-03-01 17:08:03,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:03,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:03,606 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] [2022-03-01 17:08:03,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-01 17:08:03,606 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1037844951, now seen corresponding path program 192 times [2022-03-01 17:08:03,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:03,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164548491] [2022-03-01 17:08:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:03,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:03,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164548491] [2022-03-01 17:08:03,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164548491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:03,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:03,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:03,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438913224] [2022-03-01 17:08:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:03,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:03,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:03,682 INFO L87 Difference]: Start difference. First operand 1500 states and 5923 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:03,755 INFO L93 Difference]: Finished difference Result 3002 states and 11095 transitions. [2022-03-01 17:08:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:03,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:03,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:03,762 INFO L225 Difference]: With dead ends: 3002 [2022-03-01 17:08:03,762 INFO L226 Difference]: Without dead ends: 2712 [2022-03-01 17:08:03,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:03,763 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:03,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 133 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2022-03-01 17:08:03,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 1432. [2022-03-01 17:08:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.9825296995108315) internal successors, (5699), 1431 states have internal predecessors, (5699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5699 transitions. [2022-03-01 17:08:03,791 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5699 transitions. Word has length 25 [2022-03-01 17:08:03,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:03,791 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5699 transitions. [2022-03-01 17:08:03,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5699 transitions. [2022-03-01 17:08:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:03,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:03,793 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] [2022-03-01 17:08:03,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-01 17:08:03,793 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1717640593, now seen corresponding path program 193 times [2022-03-01 17:08:03,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:03,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098961797] [2022-03-01 17:08:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:03,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:03,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:03,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098961797] [2022-03-01 17:08:03,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098961797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:03,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:03,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:03,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772321284] [2022-03-01 17:08:03,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:03,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:03,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:03,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:03,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:03,870 INFO L87 Difference]: Start difference. First operand 1432 states and 5699 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:03,944 INFO L93 Difference]: Finished difference Result 2797 states and 10356 transitions. [2022-03-01 17:08:03,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:03,944 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:03,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:03,950 INFO L225 Difference]: With dead ends: 2797 [2022-03-01 17:08:03,950 INFO L226 Difference]: Without dead ends: 2638 [2022-03-01 17:08:03,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:03,951 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:03,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 163 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2022-03-01 17:08:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 1460. [2022-03-01 17:08:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.977381768334476) internal successors, (5803), 1459 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5803 transitions. [2022-03-01 17:08:03,978 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5803 transitions. Word has length 25 [2022-03-01 17:08:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:03,979 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5803 transitions. [2022-03-01 17:08:03,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5803 transitions. [2022-03-01 17:08:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:03,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:03,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:03,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-01 17:08:03,981 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:03,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:03,981 INFO L85 PathProgramCache]: Analyzing trace with hash 127705843, now seen corresponding path program 194 times [2022-03-01 17:08:03,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:03,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669225180] [2022-03-01 17:08:03,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:03,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:04,057 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:04,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669225180] [2022-03-01 17:08:04,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669225180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:04,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:04,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:04,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31278191] [2022-03-01 17:08:04,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:04,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:04,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:04,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:04,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:04,058 INFO L87 Difference]: Start difference. First operand 1460 states and 5803 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:04,139 INFO L93 Difference]: Finished difference Result 2827 states and 10449 transitions. [2022-03-01 17:08:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:04,139 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:04,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:04,145 INFO L225 Difference]: With dead ends: 2827 [2022-03-01 17:08:04,146 INFO L226 Difference]: Without dead ends: 2622 [2022-03-01 17:08:04,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:04,146 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:04,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 153 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:04,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2022-03-01 17:08:04,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 1444. [2022-03-01 17:08:04,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9826749826749825) internal successors, (5747), 1443 states have internal predecessors, (5747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5747 transitions. [2022-03-01 17:08:04,174 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5747 transitions. Word has length 25 [2022-03-01 17:08:04,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:04,174 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5747 transitions. [2022-03-01 17:08:04,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5747 transitions. [2022-03-01 17:08:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:04,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:04,177 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] [2022-03-01 17:08:04,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-01 17:08:04,177 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:04,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:04,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1496264077, now seen corresponding path program 195 times [2022-03-01 17:08:04,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:04,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014536348] [2022-03-01 17:08:04,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:04,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:04,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:04,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014536348] [2022-03-01 17:08:04,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014536348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:04,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:04,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:04,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835245209] [2022-03-01 17:08:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:04,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:04,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:04,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:04,257 INFO L87 Difference]: Start difference. First operand 1444 states and 5747 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:04,329 INFO L93 Difference]: Finished difference Result 2795 states and 10343 transitions. [2022-03-01 17:08:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:04,336 INFO L225 Difference]: With dead ends: 2795 [2022-03-01 17:08:04,336 INFO L226 Difference]: Without dead ends: 2636 [2022-03-01 17:08:04,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:04,336 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:04,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 153 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:04,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2022-03-01 17:08:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 1460. [2022-03-01 17:08:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.971898560657985) internal successors, (5795), 1459 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5795 transitions. [2022-03-01 17:08:04,365 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5795 transitions. Word has length 25 [2022-03-01 17:08:04,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:04,365 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5795 transitions. [2022-03-01 17:08:04,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5795 transitions. [2022-03-01 17:08:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:04,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:04,368 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] [2022-03-01 17:08:04,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-01 17:08:04,368 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:04,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:04,373 INFO L85 PathProgramCache]: Analyzing trace with hash -487966093, now seen corresponding path program 196 times [2022-03-01 17:08:04,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:04,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16430183] [2022-03-01 17:08:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:04,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:04,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16430183] [2022-03-01 17:08:04,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16430183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:04,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:04,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:04,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623931075] [2022-03-01 17:08:04,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:04,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:04,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:04,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:04,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:04,455 INFO L87 Difference]: Start difference. First operand 1460 states and 5795 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:04,540 INFO L93 Difference]: Finished difference Result 2823 states and 10431 transitions. [2022-03-01 17:08:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:04,547 INFO L225 Difference]: With dead ends: 2823 [2022-03-01 17:08:04,547 INFO L226 Difference]: Without dead ends: 2620 [2022-03-01 17:08:04,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:04,547 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 96 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:04,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 171 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2620 states. [2022-03-01 17:08:04,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1444. [2022-03-01 17:08:04,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9771309771309773) internal successors, (5739), 1443 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5739 transitions. [2022-03-01 17:08:04,574 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5739 transitions. Word has length 25 [2022-03-01 17:08:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:04,574 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5739 transitions. [2022-03-01 17:08:04,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5739 transitions. [2022-03-01 17:08:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:04,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:04,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:04,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-01 17:08:04,577 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:04,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:04,577 INFO L85 PathProgramCache]: Analyzing trace with hash -79102123, now seen corresponding path program 197 times [2022-03-01 17:08:04,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:04,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129296605] [2022-03-01 17:08:04,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:04,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:04,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:04,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129296605] [2022-03-01 17:08:04,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129296605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:04,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:04,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:04,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000356206] [2022-03-01 17:08:04,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:04,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:04,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:04,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:04,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:04,667 INFO L87 Difference]: Start difference. First operand 1444 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:04,758 INFO L93 Difference]: Finished difference Result 2869 states and 10612 transitions. [2022-03-01 17:08:04,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:04,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:04,765 INFO L225 Difference]: With dead ends: 2869 [2022-03-01 17:08:04,765 INFO L226 Difference]: Without dead ends: 2680 [2022-03-01 17:08:04,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:04,765 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:04,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-01 17:08:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1474. [2022-03-01 17:08:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1474 states, 1473 states have (on average 3.9592668024439917) internal successors, (5832), 1473 states have internal predecessors, (5832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 5832 transitions. [2022-03-01 17:08:04,793 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 5832 transitions. Word has length 25 [2022-03-01 17:08:04,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:04,793 INFO L470 AbstractCegarLoop]: Abstraction has 1474 states and 5832 transitions. [2022-03-01 17:08:04,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 5832 transitions. [2022-03-01 17:08:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:04,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:04,795 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] [2022-03-01 17:08:04,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-01 17:08:04,795 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:04,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2122439117, now seen corresponding path program 198 times [2022-03-01 17:08:04,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:04,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972938761] [2022-03-01 17:08:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:04,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:04,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:04,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972938761] [2022-03-01 17:08:04,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972938761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:04,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:04,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:04,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99553926] [2022-03-01 17:08:04,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:04,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:04,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:04,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:04,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:04,874 INFO L87 Difference]: Start difference. First operand 1474 states and 5832 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:04,961 INFO L93 Difference]: Finished difference Result 2867 states and 10577 transitions. [2022-03-01 17:08:04,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:04,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:04,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:04,968 INFO L225 Difference]: With dead ends: 2867 [2022-03-01 17:08:04,968 INFO L226 Difference]: Without dead ends: 2642 [2022-03-01 17:08:04,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:04,968 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 100 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:04,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-03-01 17:08:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1436. [2022-03-01 17:08:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9825783972125435) internal successors, (5715), 1435 states have internal predecessors, (5715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5715 transitions. [2022-03-01 17:08:04,996 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5715 transitions. Word has length 25 [2022-03-01 17:08:04,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:04,996 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5715 transitions. [2022-03-01 17:08:04,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5715 transitions. [2022-03-01 17:08:04,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:04,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:04,998 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] [2022-03-01 17:08:04,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-01 17:08:04,998 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:04,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:04,998 INFO L85 PathProgramCache]: Analyzing trace with hash 543680883, now seen corresponding path program 199 times [2022-03-01 17:08:04,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:04,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757620117] [2022-03-01 17:08:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:04,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:05,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:05,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:05,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757620117] [2022-03-01 17:08:05,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757620117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:05,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:05,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:05,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181273781] [2022-03-01 17:08:05,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:05,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:05,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:05,077 INFO L87 Difference]: Start difference. First operand 1436 states and 5715 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:05,156 INFO L93 Difference]: Finished difference Result 2763 states and 10225 transitions. [2022-03-01 17:08:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:05,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:05,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:05,162 INFO L225 Difference]: With dead ends: 2763 [2022-03-01 17:08:05,162 INFO L226 Difference]: Without dead ends: 2604 [2022-03-01 17:08:05,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:05,163 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:05,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:05,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2022-03-01 17:08:05,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 1460. [2022-03-01 17:08:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9746401644962304) internal successors, (5799), 1459 states have internal predecessors, (5799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5799 transitions. [2022-03-01 17:08:05,194 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5799 transitions. Word has length 25 [2022-03-01 17:08:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:05,194 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5799 transitions. [2022-03-01 17:08:05,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5799 transitions. [2022-03-01 17:08:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:05,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:05,197 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] [2022-03-01 17:08:05,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-01 17:08:05,197 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:05,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1046253867, now seen corresponding path program 200 times [2022-03-01 17:08:05,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:05,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391662989] [2022-03-01 17:08:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:05,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:05,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:05,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391662989] [2022-03-01 17:08:05,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391662989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:05,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:05,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:05,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496160885] [2022-03-01 17:08:05,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:05,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:05,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:05,285 INFO L87 Difference]: Start difference. First operand 1460 states and 5799 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:05,369 INFO L93 Difference]: Finished difference Result 2793 states and 10318 transitions. [2022-03-01 17:08:05,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:05,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:05,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:05,376 INFO L225 Difference]: With dead ends: 2793 [2022-03-01 17:08:05,376 INFO L226 Difference]: Without dead ends: 2588 [2022-03-01 17:08:05,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:05,377 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 136 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:05,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 128 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:05,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2022-03-01 17:08:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 1444. [2022-03-01 17:08:05,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9799029799029797) internal successors, (5743), 1443 states have internal predecessors, (5743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5743 transitions. [2022-03-01 17:08:05,407 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5743 transitions. Word has length 25 [2022-03-01 17:08:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5743 transitions. [2022-03-01 17:08:05,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5743 transitions. [2022-03-01 17:08:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:05,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:05,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:05,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-01 17:08:05,410 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:05,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:05,410 INFO L85 PathProgramCache]: Analyzing trace with hash 593248627, now seen corresponding path program 201 times [2022-03-01 17:08:05,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:05,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045624755] [2022-03-01 17:08:05,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:05,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:05,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:05,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045624755] [2022-03-01 17:08:05,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045624755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:05,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:05,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:05,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84330548] [2022-03-01 17:08:05,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:05,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:05,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:05,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:05,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:05,533 INFO L87 Difference]: Start difference. First operand 1444 states and 5743 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:05,644 INFO L93 Difference]: Finished difference Result 2717 states and 10060 transitions. [2022-03-01 17:08:05,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:05,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:05,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:05,651 INFO L225 Difference]: With dead ends: 2717 [2022-03-01 17:08:05,651 INFO L226 Difference]: Without dead ends: 2558 [2022-03-01 17:08:05,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:05,651 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 105 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:05,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 159 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:05,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2022-03-01 17:08:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 1460. [2022-03-01 17:08:05,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9691569568197393) internal successors, (5791), 1459 states have internal predecessors, (5791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5791 transitions. [2022-03-01 17:08:05,680 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5791 transitions. Word has length 25 [2022-03-01 17:08:05,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:05,680 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5791 transitions. [2022-03-01 17:08:05,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5791 transitions. [2022-03-01 17:08:05,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:05,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:05,686 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] [2022-03-01 17:08:05,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-01 17:08:05,686 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:05,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:05,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1349023373, now seen corresponding path program 202 times [2022-03-01 17:08:05,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:05,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587344371] [2022-03-01 17:08:05,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:05,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:05,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:05,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587344371] [2022-03-01 17:08:05,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587344371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:05,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:05,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:05,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692416501] [2022-03-01 17:08:05,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:05,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:05,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:05,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:05,806 INFO L87 Difference]: Start difference. First operand 1460 states and 5791 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:05,927 INFO L93 Difference]: Finished difference Result 2605 states and 9723 transitions. [2022-03-01 17:08:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:05,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:05,933 INFO L225 Difference]: With dead ends: 2605 [2022-03-01 17:08:05,933 INFO L226 Difference]: Without dead ends: 2414 [2022-03-01 17:08:05,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:05,933 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 85 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:05,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 178 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:05,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-03-01 17:08:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 1444. [2022-03-01 17:08:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9743589743589745) internal successors, (5735), 1443 states have internal predecessors, (5735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5735 transitions. [2022-03-01 17:08:05,961 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5735 transitions. Word has length 25 [2022-03-01 17:08:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:05,961 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5735 transitions. [2022-03-01 17:08:05,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5735 transitions. [2022-03-01 17:08:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:05,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:05,963 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] [2022-03-01 17:08:05,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-01 17:08:05,964 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:05,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:05,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2010410581, now seen corresponding path program 203 times [2022-03-01 17:08:05,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:05,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886484418] [2022-03-01 17:08:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:05,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:06,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:06,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:06,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886484418] [2022-03-01 17:08:06,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886484418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:06,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:06,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:06,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553772704] [2022-03-01 17:08:06,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:06,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:06,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:06,042 INFO L87 Difference]: Start difference. First operand 1444 states and 5735 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:06,124 INFO L93 Difference]: Finished difference Result 2755 states and 10197 transitions. [2022-03-01 17:08:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:06,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:06,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:06,130 INFO L225 Difference]: With dead ends: 2755 [2022-03-01 17:08:06,130 INFO L226 Difference]: Without dead ends: 2566 [2022-03-01 17:08:06,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:06,131 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:06,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:06,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2566 states. [2022-03-01 17:08:06,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2566 to 1468. [2022-03-01 17:08:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.9611451942740286) internal successors, (5811), 1467 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5811 transitions. [2022-03-01 17:08:06,158 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5811 transitions. Word has length 25 [2022-03-01 17:08:06,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:06,158 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5811 transitions. [2022-03-01 17:08:06,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5811 transitions. [2022-03-01 17:08:06,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:06,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:06,161 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] [2022-03-01 17:08:06,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-01 17:08:06,161 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:06,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:06,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1269458483, now seen corresponding path program 204 times [2022-03-01 17:08:06,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:06,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798227193] [2022-03-01 17:08:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:06,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:06,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:06,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:06,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798227193] [2022-03-01 17:08:06,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798227193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:06,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:06,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:06,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962520800] [2022-03-01 17:08:06,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:06,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:06,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:06,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:06,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:06,240 INFO L87 Difference]: Start difference. First operand 1468 states and 5811 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:06,322 INFO L93 Difference]: Finished difference Result 2613 states and 9743 transitions. [2022-03-01 17:08:06,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:06,323 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:06,341 INFO L225 Difference]: With dead ends: 2613 [2022-03-01 17:08:06,341 INFO L226 Difference]: Without dead ends: 2406 [2022-03-01 17:08:06,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:06,341 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:06,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 154 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-03-01 17:08:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 1436. [2022-03-01 17:08:06,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9797909407665504) internal successors, (5711), 1435 states have internal predecessors, (5711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5711 transitions. [2022-03-01 17:08:06,368 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5711 transitions. Word has length 25 [2022-03-01 17:08:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:06,369 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5711 transitions. [2022-03-01 17:08:06,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5711 transitions. [2022-03-01 17:08:06,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:06,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:06,371 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] [2022-03-01 17:08:06,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-01 17:08:06,371 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:06,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:06,371 INFO L85 PathProgramCache]: Analyzing trace with hash 931685845, now seen corresponding path program 205 times [2022-03-01 17:08:06,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:06,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394095804] [2022-03-01 17:08:06,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:06,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:06,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:06,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394095804] [2022-03-01 17:08:06,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394095804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:06,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:06,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:06,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629759607] [2022-03-01 17:08:06,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:06,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:06,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:06,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:06,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:06,452 INFO L87 Difference]: Start difference. First operand 1436 states and 5711 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:06,527 INFO L93 Difference]: Finished difference Result 2759 states and 10211 transitions. [2022-03-01 17:08:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:06,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:06,545 INFO L225 Difference]: With dead ends: 2759 [2022-03-01 17:08:06,545 INFO L226 Difference]: Without dead ends: 2600 [2022-03-01 17:08:06,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:06,546 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:06,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:06,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2022-03-01 17:08:06,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1460. [2022-03-01 17:08:06,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.971898560657985) internal successors, (5795), 1459 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5795 transitions. [2022-03-01 17:08:06,571 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5795 transitions. Word has length 25 [2022-03-01 17:08:06,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:06,571 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5795 transitions. [2022-03-01 17:08:06,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5795 transitions. [2022-03-01 17:08:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:06,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:06,574 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] [2022-03-01 17:08:06,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-01 17:08:06,574 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1939983829, now seen corresponding path program 206 times [2022-03-01 17:08:06,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:06,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053342831] [2022-03-01 17:08:06,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:06,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:06,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:06,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053342831] [2022-03-01 17:08:06,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053342831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:06,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:06,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:06,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125471660] [2022-03-01 17:08:06,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:06,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:06,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:06,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:06,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:06,698 INFO L87 Difference]: Start difference. First operand 1460 states and 5795 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:06,800 INFO L93 Difference]: Finished difference Result 2787 states and 10299 transitions. [2022-03-01 17:08:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:06,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:06,807 INFO L225 Difference]: With dead ends: 2787 [2022-03-01 17:08:06,807 INFO L226 Difference]: Without dead ends: 2584 [2022-03-01 17:08:06,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:06,807 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:06,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 143 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:06,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2584 states. [2022-03-01 17:08:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2584 to 1444. [2022-03-01 17:08:06,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9771309771309773) internal successors, (5739), 1443 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5739 transitions. [2022-03-01 17:08:06,834 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5739 transitions. Word has length 25 [2022-03-01 17:08:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:06,834 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5739 transitions. [2022-03-01 17:08:06,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:06,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5739 transitions. [2022-03-01 17:08:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:06,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:06,837 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] [2022-03-01 17:08:06,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-01 17:08:06,837 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:06,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:06,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1184393805, now seen corresponding path program 207 times [2022-03-01 17:08:06,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:06,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163273157] [2022-03-01 17:08:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:06,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:06,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:06,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163273157] [2022-03-01 17:08:06,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163273157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:06,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:06,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:06,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580411320] [2022-03-01 17:08:06,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:06,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:06,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:06,924 INFO L87 Difference]: Start difference. First operand 1444 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:07,005 INFO L93 Difference]: Finished difference Result 2715 states and 10051 transitions. [2022-03-01 17:08:07,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:07,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:07,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:07,012 INFO L225 Difference]: With dead ends: 2715 [2022-03-01 17:08:07,012 INFO L226 Difference]: Without dead ends: 2556 [2022-03-01 17:08:07,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:07,012 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:07,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 157 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2022-03-01 17:08:07,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 1460. [2022-03-01 17:08:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.9664153529814943) internal successors, (5787), 1459 states have internal predecessors, (5787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5787 transitions. [2022-03-01 17:08:07,039 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5787 transitions. Word has length 25 [2022-03-01 17:08:07,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:07,039 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5787 transitions. [2022-03-01 17:08:07,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5787 transitions. [2022-03-01 17:08:07,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:07,042 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:07,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:07,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-01 17:08:07,042 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:07,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1829925419, now seen corresponding path program 208 times [2022-03-01 17:08:07,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:07,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451871257] [2022-03-01 17:08:07,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:07,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:07,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:07,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451871257] [2022-03-01 17:08:07,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451871257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:07,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:07,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:07,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283118547] [2022-03-01 17:08:07,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:07,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:07,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:07,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:07,119 INFO L87 Difference]: Start difference. First operand 1460 states and 5787 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:07,202 INFO L93 Difference]: Finished difference Result 2603 states and 9714 transitions. [2022-03-01 17:08:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:07,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:07,208 INFO L225 Difference]: With dead ends: 2603 [2022-03-01 17:08:07,208 INFO L226 Difference]: Without dead ends: 2412 [2022-03-01 17:08:07,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:07,208 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:07,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 160 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:07,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-03-01 17:08:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1444. [2022-03-01 17:08:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9715869715869716) internal successors, (5731), 1443 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5731 transitions. [2022-03-01 17:08:07,234 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5731 transitions. Word has length 25 [2022-03-01 17:08:07,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:07,234 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5731 transitions. [2022-03-01 17:08:07,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5731 transitions. [2022-03-01 17:08:07,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:07,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:07,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:07,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-01 17:08:07,237 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:07,237 INFO L85 PathProgramCache]: Analyzing trace with hash -567601707, now seen corresponding path program 209 times [2022-03-01 17:08:07,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:07,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506464308] [2022-03-01 17:08:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:07,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:07,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:07,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:07,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506464308] [2022-03-01 17:08:07,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506464308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:07,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:07,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:07,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802201521] [2022-03-01 17:08:07,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:07,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:07,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:07,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:07,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:07,312 INFO L87 Difference]: Start difference. First operand 1444 states and 5731 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:07,392 INFO L93 Difference]: Finished difference Result 2751 states and 10183 transitions. [2022-03-01 17:08:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:07,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:07,398 INFO L225 Difference]: With dead ends: 2751 [2022-03-01 17:08:07,398 INFO L226 Difference]: Without dead ends: 2564 [2022-03-01 17:08:07,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:07,398 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:07,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 158 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2022-03-01 17:08:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1468. [2022-03-01 17:08:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1468 states, 1467 states have (on average 3.958418541240627) internal successors, (5807), 1467 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1468 states to 1468 states and 5807 transitions. [2022-03-01 17:08:07,426 INFO L78 Accepts]: Start accepts. Automaton has 1468 states and 5807 transitions. Word has length 25 [2022-03-01 17:08:07,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:07,426 INFO L470 AbstractCegarLoop]: Abstraction has 1468 states and 5807 transitions. [2022-03-01 17:08:07,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1468 states and 5807 transitions. [2022-03-01 17:08:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:07,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:07,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:07,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-01 17:08:07,429 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:07,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:07,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1959746253, now seen corresponding path program 210 times [2022-03-01 17:08:07,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:07,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364433909] [2022-03-01 17:08:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:07,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:07,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:07,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364433909] [2022-03-01 17:08:07,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364433909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:07,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:07,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:07,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901708224] [2022-03-01 17:08:07,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:07,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:07,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:07,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:07,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:07,505 INFO L87 Difference]: Start difference. First operand 1468 states and 5807 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:07,587 INFO L93 Difference]: Finished difference Result 2611 states and 9734 transitions. [2022-03-01 17:08:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:07,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:07,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:07,593 INFO L225 Difference]: With dead ends: 2611 [2022-03-01 17:08:07,593 INFO L226 Difference]: Without dead ends: 2404 [2022-03-01 17:08:07,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:07,593 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 86 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:07,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 156 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2022-03-01 17:08:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1436. [2022-03-01 17:08:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9770034843205573) internal successors, (5707), 1435 states have internal predecessors, (5707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5707 transitions. [2022-03-01 17:08:07,620 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5707 transitions. Word has length 25 [2022-03-01 17:08:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:07,620 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5707 transitions. [2022-03-01 17:08:07,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5707 transitions. [2022-03-01 17:08:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:07,622 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:07,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:07,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-01 17:08:07,623 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:07,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:07,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1655790135, now seen corresponding path program 211 times [2022-03-01 17:08:07,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:07,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675943565] [2022-03-01 17:08:07,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:07,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:07,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:07,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675943565] [2022-03-01 17:08:07,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675943565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:07,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:07,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:07,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35733256] [2022-03-01 17:08:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:07,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:07,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:07,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:07,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:07,701 INFO L87 Difference]: Start difference. First operand 1436 states and 5707 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:07,788 INFO L93 Difference]: Finished difference Result 2875 states and 10649 transitions. [2022-03-01 17:08:07,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:07,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:07,793 INFO L225 Difference]: With dead ends: 2875 [2022-03-01 17:08:07,793 INFO L226 Difference]: Without dead ends: 2686 [2022-03-01 17:08:07,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:07,794 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:07,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 141 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:07,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-03-01 17:08:07,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1478. [2022-03-01 17:08:07,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.964793500338524) internal successors, (5856), 1477 states have internal predecessors, (5856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5856 transitions. [2022-03-01 17:08:07,819 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5856 transitions. Word has length 25 [2022-03-01 17:08:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:07,819 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5856 transitions. [2022-03-01 17:08:07,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:07,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5856 transitions. [2022-03-01 17:08:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:07,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:07,821 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] [2022-03-01 17:08:07,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-01 17:08:07,822 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash -387546859, now seen corresponding path program 212 times [2022-03-01 17:08:07,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:07,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469883768] [2022-03-01 17:08:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:07,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:07,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:07,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469883768] [2022-03-01 17:08:07,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469883768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:07,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:07,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:07,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470984707] [2022-03-01 17:08:07,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:07,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:07,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:07,921 INFO L87 Difference]: Start difference. First operand 1478 states and 5856 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:08,023 INFO L93 Difference]: Finished difference Result 2873 states and 10614 transitions. [2022-03-01 17:08:08,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:08,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:08,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:08,030 INFO L225 Difference]: With dead ends: 2873 [2022-03-01 17:08:08,030 INFO L226 Difference]: Without dead ends: 2656 [2022-03-01 17:08:08,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:08,030 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 95 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:08,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 161 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:08,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2022-03-01 17:08:08,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 1448. [2022-03-01 17:08:08,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9744298548721493) internal successors, (5751), 1447 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5751 transitions. [2022-03-01 17:08:08,068 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5751 transitions. Word has length 25 [2022-03-01 17:08:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:08,068 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5751 transitions. [2022-03-01 17:08:08,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5751 transitions. [2022-03-01 17:08:08,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:08,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:08,070 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] [2022-03-01 17:08:08,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-01 17:08:08,071 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:08,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash -460289515, now seen corresponding path program 213 times [2022-03-01 17:08:08,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:08,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497527879] [2022-03-01 17:08:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:08,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:08,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497527879] [2022-03-01 17:08:08,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497527879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:08,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:08,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:08,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320995490] [2022-03-01 17:08:08,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:08,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:08,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:08,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:08,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:08,189 INFO L87 Difference]: Start difference. First operand 1448 states and 5751 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:08,303 INFO L93 Difference]: Finished difference Result 2795 states and 10353 transitions. [2022-03-01 17:08:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:08,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:08,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:08,309 INFO L225 Difference]: With dead ends: 2795 [2022-03-01 17:08:08,310 INFO L226 Difference]: Without dead ends: 2606 [2022-03-01 17:08:08,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:08,310 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 101 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:08,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 149 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:08,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-03-01 17:08:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1472. [2022-03-01 17:08:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9612508497620667) internal successors, (5827), 1471 states have internal predecessors, (5827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5827 transitions. [2022-03-01 17:08:08,339 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5827 transitions. Word has length 25 [2022-03-01 17:08:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:08,339 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5827 transitions. [2022-03-01 17:08:08,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5827 transitions. [2022-03-01 17:08:08,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:08,341 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:08,341 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] [2022-03-01 17:08:08,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-01 17:08:08,341 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash 95498773, now seen corresponding path program 214 times [2022-03-01 17:08:08,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:08,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225862485] [2022-03-01 17:08:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:08,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:08,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:08,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225862485] [2022-03-01 17:08:08,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225862485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:08,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:08,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:08,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007169227] [2022-03-01 17:08:08,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:08,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:08,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:08,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:08,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:08,429 INFO L87 Difference]: Start difference. First operand 1472 states and 5827 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:08,553 INFO L93 Difference]: Finished difference Result 2653 states and 9899 transitions. [2022-03-01 17:08:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:08,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:08,559 INFO L225 Difference]: With dead ends: 2653 [2022-03-01 17:08:08,559 INFO L226 Difference]: Without dead ends: 2454 [2022-03-01 17:08:08,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:08,559 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:08,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 147 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2022-03-01 17:08:08,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 1448. [2022-03-01 17:08:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9661368348306842) internal successors, (5739), 1447 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5739 transitions. [2022-03-01 17:08:08,586 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5739 transitions. Word has length 25 [2022-03-01 17:08:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:08,586 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5739 transitions. [2022-03-01 17:08:08,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5739 transitions. [2022-03-01 17:08:08,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:08,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:08,588 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] [2022-03-01 17:08:08,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-01 17:08:08,588 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:08,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash 522058099, now seen corresponding path program 215 times [2022-03-01 17:08:08,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:08,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240192749] [2022-03-01 17:08:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:08,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:08,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:08,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240192749] [2022-03-01 17:08:08,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240192749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:08,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:08,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:08,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547383736] [2022-03-01 17:08:08,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:08,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:08,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:08,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:08,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:08,672 INFO L87 Difference]: Start difference. First operand 1448 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:08,744 INFO L93 Difference]: Finished difference Result 2793 states and 10336 transitions. [2022-03-01 17:08:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:08,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:08,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:08,751 INFO L225 Difference]: With dead ends: 2793 [2022-03-01 17:08:08,751 INFO L226 Difference]: Without dead ends: 2606 [2022-03-01 17:08:08,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:08,751 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:08,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 135 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:08,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-03-01 17:08:08,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1472. [2022-03-01 17:08:08,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9530931339225015) internal successors, (5815), 1471 states have internal predecessors, (5815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5815 transitions. [2022-03-01 17:08:08,780 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5815 transitions. Word has length 25 [2022-03-01 17:08:08,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:08,781 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5815 transitions. [2022-03-01 17:08:08,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5815 transitions. [2022-03-01 17:08:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:08,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:08,783 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] [2022-03-01 17:08:08,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-01 17:08:08,783 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:08,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:08,783 INFO L85 PathProgramCache]: Analyzing trace with hash 315250133, now seen corresponding path program 216 times [2022-03-01 17:08:08,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:08,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311182066] [2022-03-01 17:08:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:08,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:08,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311182066] [2022-03-01 17:08:08,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311182066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:08,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:08,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:08,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918811370] [2022-03-01 17:08:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:08,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:08,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:08,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:08,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:08,884 INFO L87 Difference]: Start difference. First operand 1472 states and 5815 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:08,987 INFO L93 Difference]: Finished difference Result 2653 states and 9887 transitions. [2022-03-01 17:08:08,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:08,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:08,994 INFO L225 Difference]: With dead ends: 2653 [2022-03-01 17:08:08,994 INFO L226 Difference]: Without dead ends: 2438 [2022-03-01 17:08:08,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:08,994 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 80 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 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 [2022-03-01 17:08:08,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 197 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:08,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2022-03-01 17:08:09,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 1432. [2022-03-01 17:08:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.981132075471698) internal successors, (5697), 1431 states have internal predecessors, (5697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5697 transitions. [2022-03-01 17:08:09,040 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5697 transitions. Word has length 25 [2022-03-01 17:08:09,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:09,041 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5697 transitions. [2022-03-01 17:08:09,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5697 transitions. [2022-03-01 17:08:09,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:09,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:09,043 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] [2022-03-01 17:08:09,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-01 17:08:09,043 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:09,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash -312606951, now seen corresponding path program 217 times [2022-03-01 17:08:09,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:09,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518255273] [2022-03-01 17:08:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:09,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:09,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518255273] [2022-03-01 17:08:09,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518255273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:09,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:09,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:09,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664881042] [2022-03-01 17:08:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:09,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:09,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:09,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:09,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:09,154 INFO L87 Difference]: Start difference. First operand 1432 states and 5697 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:09,294 INFO L93 Difference]: Finished difference Result 3154 states and 11754 transitions. [2022-03-01 17:08:09,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:09,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:09,302 INFO L225 Difference]: With dead ends: 3154 [2022-03-01 17:08:09,302 INFO L226 Difference]: Without dead ends: 2965 [2022-03-01 17:08:09,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:09,302 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:09,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 178 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:09,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2022-03-01 17:08:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 1492. [2022-03-01 17:08:09,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 3.9738430583501008) internal successors, (5925), 1491 states have internal predecessors, (5925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 5925 transitions. [2022-03-01 17:08:09,333 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 5925 transitions. Word has length 25 [2022-03-01 17:08:09,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:09,333 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 5925 transitions. [2022-03-01 17:08:09,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 5925 transitions. [2022-03-01 17:08:09,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:09,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:09,335 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] [2022-03-01 17:08:09,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-01 17:08:09,335 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:09,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1939023351, now seen corresponding path program 218 times [2022-03-01 17:08:09,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:09,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313669709] [2022-03-01 17:08:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:09,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:09,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313669709] [2022-03-01 17:08:09,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313669709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:09,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:09,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:09,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359121792] [2022-03-01 17:08:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:09,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:09,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:09,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:09,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:09,457 INFO L87 Difference]: Start difference. First operand 1492 states and 5925 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:09,626 INFO L93 Difference]: Finished difference Result 3152 states and 11719 transitions. [2022-03-01 17:08:09,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:09,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:09,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:09,633 INFO L225 Difference]: With dead ends: 3152 [2022-03-01 17:08:09,633 INFO L226 Difference]: Without dead ends: 2935 [2022-03-01 17:08:09,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:09,634 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:09,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 159 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:09,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-03-01 17:08:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 1462. [2022-03-01 17:08:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.9835728952772076) internal successors, (5820), 1461 states have internal predecessors, (5820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5820 transitions. [2022-03-01 17:08:09,665 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5820 transitions. Word has length 25 [2022-03-01 17:08:09,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:09,665 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5820 transitions. [2022-03-01 17:08:09,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5820 transitions. [2022-03-01 17:08:09,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:09,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:09,668 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] [2022-03-01 17:08:09,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-01 17:08:09,668 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:09,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1866280695, now seen corresponding path program 219 times [2022-03-01 17:08:09,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:09,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297869863] [2022-03-01 17:08:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:09,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:09,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:09,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297869863] [2022-03-01 17:08:09,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297869863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:09,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:09,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:09,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394134953] [2022-03-01 17:08:09,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:09,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:09,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:09,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:09,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:09,782 INFO L87 Difference]: Start difference. First operand 1462 states and 5820 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:09,901 INFO L93 Difference]: Finished difference Result 3136 states and 11679 transitions. [2022-03-01 17:08:09,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:09,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:09,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:09,908 INFO L225 Difference]: With dead ends: 3136 [2022-03-01 17:08:09,908 INFO L226 Difference]: Without dead ends: 2947 [2022-03-01 17:08:09,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:09,910 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:09,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 143 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2022-03-01 17:08:09,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1486. [2022-03-01 17:08:09,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.9703703703703703) internal successors, (5896), 1485 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5896 transitions. [2022-03-01 17:08:09,949 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5896 transitions. Word has length 25 [2022-03-01 17:08:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:09,949 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5896 transitions. [2022-03-01 17:08:09,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:09,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5896 transitions. [2022-03-01 17:08:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:09,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:09,951 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] [2022-03-01 17:08:09,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-01 17:08:09,952 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:09,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:09,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1872898313, now seen corresponding path program 220 times [2022-03-01 17:08:09,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:09,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746420846] [2022-03-01 17:08:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:09,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:10,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:10,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746420846] [2022-03-01 17:08:10,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746420846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:10,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:10,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:10,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778200147] [2022-03-01 17:08:10,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:10,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:10,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:10,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:10,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:10,069 INFO L87 Difference]: Start difference. First operand 1486 states and 5896 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:10,178 INFO L93 Difference]: Finished difference Result 3122 states and 11610 transitions. [2022-03-01 17:08:10,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:10,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:10,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:10,186 INFO L225 Difference]: With dead ends: 3122 [2022-03-01 17:08:10,186 INFO L226 Difference]: Without dead ends: 2923 [2022-03-01 17:08:10,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:10,187 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 100 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:10,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 146 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:10,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-03-01 17:08:10,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1462. [2022-03-01 17:08:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1461 states have (on average 3.975359342915811) internal successors, (5808), 1461 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 5808 transitions. [2022-03-01 17:08:10,218 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 5808 transitions. Word has length 25 [2022-03-01 17:08:10,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:10,218 INFO L470 AbstractCegarLoop]: Abstraction has 1462 states and 5808 transitions. [2022-03-01 17:08:10,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 5808 transitions. [2022-03-01 17:08:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:10,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:10,220 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] [2022-03-01 17:08:10,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-01 17:08:10,221 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:10,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1446338987, now seen corresponding path program 221 times [2022-03-01 17:08:10,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:10,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34670153] [2022-03-01 17:08:10,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:10,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:10,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:10,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34670153] [2022-03-01 17:08:10,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34670153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:10,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:10,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:10,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300505543] [2022-03-01 17:08:10,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:10,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:10,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:10,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:10,304 INFO L87 Difference]: Start difference. First operand 1462 states and 5808 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:10,400 INFO L93 Difference]: Finished difference Result 3132 states and 11657 transitions. [2022-03-01 17:08:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:10,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:10,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:10,407 INFO L225 Difference]: With dead ends: 3132 [2022-03-01 17:08:10,407 INFO L226 Difference]: Without dead ends: 2945 [2022-03-01 17:08:10,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:10,407 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:10,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 144 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:10,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2945 states. [2022-03-01 17:08:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2945 to 1486. [2022-03-01 17:08:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1485 states have (on average 3.962289562289562) internal successors, (5884), 1485 states have internal predecessors, (5884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 5884 transitions. [2022-03-01 17:08:10,436 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 5884 transitions. Word has length 25 [2022-03-01 17:08:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:10,436 INFO L470 AbstractCegarLoop]: Abstraction has 1486 states and 5884 transitions. [2022-03-01 17:08:10,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 5884 transitions. [2022-03-01 17:08:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:10,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:10,438 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] [2022-03-01 17:08:10,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-01 17:08:10,439 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1653146953, now seen corresponding path program 222 times [2022-03-01 17:08:10,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:10,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573448179] [2022-03-01 17:08:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:10,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:10,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:10,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573448179] [2022-03-01 17:08:10,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573448179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:10,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:10,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:10,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143804842] [2022-03-01 17:08:10,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:10,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:10,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:10,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:10,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:10,521 INFO L87 Difference]: Start difference. First operand 1486 states and 5884 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:10,604 INFO L93 Difference]: Finished difference Result 3120 states and 11593 transitions. [2022-03-01 17:08:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:10,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:10,611 INFO L225 Difference]: With dead ends: 3120 [2022-03-01 17:08:10,611 INFO L226 Difference]: Without dead ends: 2909 [2022-03-01 17:08:10,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:10,612 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 107 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:10,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 133 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:10,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2022-03-01 17:08:10,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1450. [2022-03-01 17:08:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9820565907522427) internal successors, (5770), 1449 states have internal predecessors, (5770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5770 transitions. [2022-03-01 17:08:10,644 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5770 transitions. Word has length 25 [2022-03-01 17:08:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:10,644 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5770 transitions. [2022-03-01 17:08:10,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5770 transitions. [2022-03-01 17:08:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:10,647 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:10,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:10,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-01 17:08:10,647 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:10,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:10,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2019005431, now seen corresponding path program 223 times [2022-03-01 17:08:10,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:10,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512332264] [2022-03-01 17:08:10,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:10,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:10,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:10,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:10,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:10,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512332264] [2022-03-01 17:08:10,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512332264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:10,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:10,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:10,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941912035] [2022-03-01 17:08:10,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:10,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:10,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:10,738 INFO L87 Difference]: Start difference. First operand 1450 states and 5770 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:10,831 INFO L93 Difference]: Finished difference Result 3250 states and 12076 transitions. [2022-03-01 17:08:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:10,838 INFO L225 Difference]: With dead ends: 3250 [2022-03-01 17:08:10,838 INFO L226 Difference]: Without dead ends: 3061 [2022-03-01 17:08:10,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:10,839 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 96 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:10,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 155 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:10,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3061 states. [2022-03-01 17:08:10,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3061 to 1519. [2022-03-01 17:08:10,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.963109354413702) internal successors, (6016), 1518 states have internal predecessors, (6016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 6016 transitions. [2022-03-01 17:08:10,871 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 6016 transitions. Word has length 25 [2022-03-01 17:08:10,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:10,871 INFO L470 AbstractCegarLoop]: Abstraction has 1519 states and 6016 transitions. [2022-03-01 17:08:10,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:10,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 6016 transitions. [2022-03-01 17:08:10,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:10,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:10,873 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] [2022-03-01 17:08:10,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-01 17:08:10,873 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:10,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:10,874 INFO L85 PathProgramCache]: Analyzing trace with hash -24331563, now seen corresponding path program 224 times [2022-03-01 17:08:10,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:10,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832350426] [2022-03-01 17:08:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:10,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:10,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:10,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832350426] [2022-03-01 17:08:10,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832350426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:10,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:10,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:10,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312125464] [2022-03-01 17:08:10,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:10,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:10,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:10,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:10,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:10,953 INFO L87 Difference]: Start difference. First operand 1519 states and 6016 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:11,038 INFO L93 Difference]: Finished difference Result 3248 states and 12041 transitions. [2022-03-01 17:08:11,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:11,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:11,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:11,046 INFO L225 Difference]: With dead ends: 3248 [2022-03-01 17:08:11,046 INFO L226 Difference]: Without dead ends: 3031 [2022-03-01 17:08:11,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:11,046 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 124 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:11,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 141 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-03-01 17:08:11,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1489. [2022-03-01 17:08:11,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1488 states have (on average 3.9704301075268815) internal successors, (5908), 1488 states have internal predecessors, (5908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 5908 transitions. [2022-03-01 17:08:11,079 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 5908 transitions. Word has length 25 [2022-03-01 17:08:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:11,079 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 5908 transitions. [2022-03-01 17:08:11,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 5908 transitions. [2022-03-01 17:08:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:11,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:11,081 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] [2022-03-01 17:08:11,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-01 17:08:11,082 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:11,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:11,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1157163913, now seen corresponding path program 225 times [2022-03-01 17:08:11,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:11,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83596206] [2022-03-01 17:08:11,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:11,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:11,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:11,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83596206] [2022-03-01 17:08:11,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83596206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:11,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:11,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:11,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585889222] [2022-03-01 17:08:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:11,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:11,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:11,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:11,163 INFO L87 Difference]: Start difference. First operand 1489 states and 5908 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:11,250 INFO L93 Difference]: Finished difference Result 3318 states and 12295 transitions. [2022-03-01 17:08:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:11,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:11,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:11,257 INFO L225 Difference]: With dead ends: 3318 [2022-03-01 17:08:11,258 INFO L226 Difference]: Without dead ends: 3129 [2022-03-01 17:08:11,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:11,259 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 115 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:11,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 140 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:11,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2022-03-01 17:08:11,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 1552. [2022-03-01 17:08:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1551 states have (on average 3.9426176660219214) internal successors, (6115), 1551 states have internal predecessors, (6115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 6115 transitions. [2022-03-01 17:08:11,293 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 6115 transitions. Word has length 25 [2022-03-01 17:08:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:11,293 INFO L470 AbstractCegarLoop]: Abstraction has 1552 states and 6115 transitions. [2022-03-01 17:08:11,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 6115 transitions. [2022-03-01 17:08:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:11,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:11,296 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] [2022-03-01 17:08:11,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-01 17:08:11,296 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:11,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1712952201, now seen corresponding path program 226 times [2022-03-01 17:08:11,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:11,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511737817] [2022-03-01 17:08:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:11,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:11,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:11,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511737817] [2022-03-01 17:08:11,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511737817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:11,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:11,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:11,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373130734] [2022-03-01 17:08:11,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:11,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:11,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:11,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:11,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:11,378 INFO L87 Difference]: Start difference. First operand 1552 states and 6115 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:11,473 INFO L93 Difference]: Finished difference Result 3351 states and 12378 transitions. [2022-03-01 17:08:11,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:11,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:11,481 INFO L225 Difference]: With dead ends: 3351 [2022-03-01 17:08:11,481 INFO L226 Difference]: Without dead ends: 3066 [2022-03-01 17:08:11,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:11,481 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:11,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 146 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:11,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2022-03-01 17:08:11,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 1489. [2022-03-01 17:08:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1488 states have (on average 3.9495967741935485) internal successors, (5877), 1488 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 5877 transitions. [2022-03-01 17:08:11,512 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 5877 transitions. Word has length 25 [2022-03-01 17:08:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:11,513 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 5877 transitions. [2022-03-01 17:08:11,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 5877 transitions. [2022-03-01 17:08:11,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:11,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:11,515 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] [2022-03-01 17:08:11,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-01 17:08:11,515 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash -174816299, now seen corresponding path program 227 times [2022-03-01 17:08:11,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:11,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89574583] [2022-03-01 17:08:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:11,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:11,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:11,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89574583] [2022-03-01 17:08:11,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89574583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:11,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:11,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:11,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082196804] [2022-03-01 17:08:11,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:11,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:11,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:11,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:11,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:11,622 INFO L87 Difference]: Start difference. First operand 1489 states and 5877 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:11,702 INFO L93 Difference]: Finished difference Result 3297 states and 12203 transitions. [2022-03-01 17:08:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:11,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:11,710 INFO L225 Difference]: With dead ends: 3297 [2022-03-01 17:08:11,710 INFO L226 Difference]: Without dead ends: 3110 [2022-03-01 17:08:11,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:11,711 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 117 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:11,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 134 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2022-03-01 17:08:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 1535. [2022-03-01 17:08:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 3.9335071707953064) internal successors, (6034), 1534 states have internal predecessors, (6034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 6034 transitions. [2022-03-01 17:08:11,743 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 6034 transitions. Word has length 25 [2022-03-01 17:08:11,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:11,743 INFO L470 AbstractCegarLoop]: Abstraction has 1535 states and 6034 transitions. [2022-03-01 17:08:11,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 6034 transitions. [2022-03-01 17:08:11,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:11,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:11,746 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] [2022-03-01 17:08:11,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-01 17:08:11,746 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1762761399, now seen corresponding path program 228 times [2022-03-01 17:08:11,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:11,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522633809] [2022-03-01 17:08:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:11,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:11,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:11,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522633809] [2022-03-01 17:08:11,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522633809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:11,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:11,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:11,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441356666] [2022-03-01 17:08:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:11,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:11,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:11,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:11,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:11,827 INFO L87 Difference]: Start difference. First operand 1535 states and 6034 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:11,906 INFO L93 Difference]: Finished difference Result 3332 states and 12292 transitions. [2022-03-01 17:08:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:11,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:11,913 INFO L225 Difference]: With dead ends: 3332 [2022-03-01 17:08:11,913 INFO L226 Difference]: Without dead ends: 3025 [2022-03-01 17:08:11,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:11,914 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:11,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 139 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:11,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2022-03-01 17:08:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 1450. [2022-03-01 17:08:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9696342305037957) internal successors, (5752), 1449 states have internal predecessors, (5752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5752 transitions. [2022-03-01 17:08:11,944 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5752 transitions. Word has length 25 [2022-03-01 17:08:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:11,944 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5752 transitions. [2022-03-01 17:08:11,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5752 transitions. [2022-03-01 17:08:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:11,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:11,947 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] [2022-03-01 17:08:11,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-01 17:08:11,947 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:11,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:11,947 INFO L85 PathProgramCache]: Analyzing trace with hash -116976427, now seen corresponding path program 229 times [2022-03-01 17:08:11,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:11,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505375615] [2022-03-01 17:08:11,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:11,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:12,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:12,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505375615] [2022-03-01 17:08:12,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505375615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:12,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:12,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:12,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477774887] [2022-03-01 17:08:12,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:12,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:12,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:12,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:12,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:12,029 INFO L87 Difference]: Start difference. First operand 1450 states and 5752 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:12,111 INFO L93 Difference]: Finished difference Result 3197 states and 11876 transitions. [2022-03-01 17:08:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:12,111 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:12,118 INFO L225 Difference]: With dead ends: 3197 [2022-03-01 17:08:12,118 INFO L226 Difference]: Without dead ends: 3008 [2022-03-01 17:08:12,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:12,119 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:12,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:12,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-03-01 17:08:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 1502. [2022-03-01 17:08:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1501 states have (on average 3.9626915389740174) internal successors, (5948), 1501 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 5948 transitions. [2022-03-01 17:08:12,150 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 5948 transitions. Word has length 25 [2022-03-01 17:08:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:12,150 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 5948 transitions. [2022-03-01 17:08:12,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 5948 transitions. [2022-03-01 17:08:12,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:12,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:12,152 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] [2022-03-01 17:08:12,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-01 17:08:12,152 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 438811861, now seen corresponding path program 230 times [2022-03-01 17:08:12,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:12,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414855971] [2022-03-01 17:08:12,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:12,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:12,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:12,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414855971] [2022-03-01 17:08:12,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414855971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:12,239 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:12,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:12,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664468701] [2022-03-01 17:08:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:12,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:12,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:12,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:12,240 INFO L87 Difference]: Start difference. First operand 1502 states and 5948 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:12,336 INFO L93 Difference]: Finished difference Result 3183 states and 11807 transitions. [2022-03-01 17:08:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:12,336 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:12,344 INFO L225 Difference]: With dead ends: 3183 [2022-03-01 17:08:12,344 INFO L226 Difference]: Without dead ends: 2984 [2022-03-01 17:08:12,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:12,344 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:12,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 162 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-03-01 17:08:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1478. [2022-03-01 17:08:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.967501692620176) internal successors, (5860), 1477 states have internal predecessors, (5860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5860 transitions. [2022-03-01 17:08:12,375 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5860 transitions. Word has length 25 [2022-03-01 17:08:12,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:12,375 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5860 transitions. [2022-03-01 17:08:12,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5860 transitions. [2022-03-01 17:08:12,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:12,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:12,378 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] [2022-03-01 17:08:12,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-01 17:08:12,378 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:12,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:12,378 INFO L85 PathProgramCache]: Analyzing trace with hash -734499785, now seen corresponding path program 231 times [2022-03-01 17:08:12,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:12,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895939956] [2022-03-01 17:08:12,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:12,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:12,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:12,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895939956] [2022-03-01 17:08:12,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895939956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:12,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:12,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:12,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217732958] [2022-03-01 17:08:12,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:12,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:12,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:12,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:12,464 INFO L87 Difference]: Start difference. First operand 1478 states and 5860 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:12,570 INFO L93 Difference]: Finished difference Result 3220 states and 11923 transitions. [2022-03-01 17:08:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:12,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:12,577 INFO L225 Difference]: With dead ends: 3220 [2022-03-01 17:08:12,577 INFO L226 Difference]: Without dead ends: 3031 [2022-03-01 17:08:12,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:12,578 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 107 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:12,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 168 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3031 states. [2022-03-01 17:08:12,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3031 to 1541. [2022-03-01 17:08:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 3.93961038961039) internal successors, (6067), 1540 states have internal predecessors, (6067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 6067 transitions. [2022-03-01 17:08:12,611 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 6067 transitions. Word has length 25 [2022-03-01 17:08:12,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:12,611 INFO L470 AbstractCegarLoop]: Abstraction has 1541 states and 6067 transitions. [2022-03-01 17:08:12,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 6067 transitions. [2022-03-01 17:08:12,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:12,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:12,613 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] [2022-03-01 17:08:12,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-01 17:08:12,614 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:12,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:12,614 INFO L85 PathProgramCache]: Analyzing trace with hash 549002453, now seen corresponding path program 232 times [2022-03-01 17:08:12,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:12,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097564006] [2022-03-01 17:08:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:12,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:12,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:12,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097564006] [2022-03-01 17:08:12,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097564006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:12,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:12,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:12,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202023149] [2022-03-01 17:08:12,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:12,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:12,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:12,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:12,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:12,707 INFO L87 Difference]: Start difference. First operand 1541 states and 6067 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:12,793 INFO L93 Difference]: Finished difference Result 3253 states and 12006 transitions. [2022-03-01 17:08:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:12,800 INFO L225 Difference]: With dead ends: 3253 [2022-03-01 17:08:12,800 INFO L226 Difference]: Without dead ends: 2968 [2022-03-01 17:08:12,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:12,800 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:12,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 139 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:12,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2022-03-01 17:08:12,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 1478. [2022-03-01 17:08:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1477 states have (on average 3.948544346648612) internal successors, (5832), 1477 states have internal predecessors, (5832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 5832 transitions. [2022-03-01 17:08:12,830 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 5832 transitions. Word has length 25 [2022-03-01 17:08:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:12,830 INFO L470 AbstractCegarLoop]: Abstraction has 1478 states and 5832 transitions. [2022-03-01 17:08:12,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:12,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 5832 transitions. [2022-03-01 17:08:12,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:12,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:12,832 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] [2022-03-01 17:08:12,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-01 17:08:12,832 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:12,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:12,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1097788203, now seen corresponding path program 233 times [2022-03-01 17:08:12,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:12,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948239389] [2022-03-01 17:08:12,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:12,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:12,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:12,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948239389] [2022-03-01 17:08:12,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948239389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:12,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:12,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:12,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709720026] [2022-03-01 17:08:12,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:12,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:12,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:12,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:12,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:12,920 INFO L87 Difference]: Start difference. First operand 1478 states and 5832 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:13,011 INFO L93 Difference]: Finished difference Result 3169 states and 11731 transitions. [2022-03-01 17:08:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:13,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:13,018 INFO L225 Difference]: With dead ends: 3169 [2022-03-01 17:08:13,019 INFO L226 Difference]: Without dead ends: 2994 [2022-03-01 17:08:13,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:13,019 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:13,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 157 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:13,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-03-01 17:08:13,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 1518. [2022-03-01 17:08:13,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 3.936717205009888) internal successors, (5972), 1517 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 5972 transitions. [2022-03-01 17:08:13,050 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 5972 transitions. Word has length 25 [2022-03-01 17:08:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:13,050 INFO L470 AbstractCegarLoop]: Abstraction has 1518 states and 5972 transitions. [2022-03-01 17:08:13,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 5972 transitions. [2022-03-01 17:08:13,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:13,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:13,053 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] [2022-03-01 17:08:13,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-01 17:08:13,053 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:13,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:13,053 INFO L85 PathProgramCache]: Analyzing trace with hash -879436617, now seen corresponding path program 234 times [2022-03-01 17:08:13,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:13,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087247434] [2022-03-01 17:08:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:13,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:13,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:13,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087247434] [2022-03-01 17:08:13,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087247434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:13,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:13,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:13,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341063635] [2022-03-01 17:08:13,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:13,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:13,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:13,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:13,135 INFO L87 Difference]: Start difference. First operand 1518 states and 5972 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:13,230 INFO L93 Difference]: Finished difference Result 3121 states and 11531 transitions. [2022-03-01 17:08:13,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:13,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:13,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:13,237 INFO L225 Difference]: With dead ends: 3121 [2022-03-01 17:08:13,238 INFO L226 Difference]: Without dead ends: 2831 [2022-03-01 17:08:13,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:13,238 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 170 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 [2022-03-01 17:08:13,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 170 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:13,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-01 17:08:13,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1450. [2022-03-01 17:08:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9599723947550034) internal successors, (5738), 1449 states have internal predecessors, (5738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5738 transitions. [2022-03-01 17:08:13,268 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5738 transitions. Word has length 25 [2022-03-01 17:08:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:13,268 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5738 transitions. [2022-03-01 17:08:13,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5738 transitions. [2022-03-01 17:08:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:13,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:13,270 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] [2022-03-01 17:08:13,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-01 17:08:13,270 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash 855420083, now seen corresponding path program 235 times [2022-03-01 17:08:13,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:13,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086390932] [2022-03-01 17:08:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:13,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:13,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086390932] [2022-03-01 17:08:13,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086390932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:13,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:13,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:13,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578213791] [2022-03-01 17:08:13,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:13,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:13,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:13,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:13,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:13,400 INFO L87 Difference]: Start difference. First operand 1450 states and 5738 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:13,482 INFO L93 Difference]: Finished difference Result 3166 states and 11768 transitions. [2022-03-01 17:08:13,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:13,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:13,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:13,489 INFO L225 Difference]: With dead ends: 3166 [2022-03-01 17:08:13,489 INFO L226 Difference]: Without dead ends: 2979 [2022-03-01 17:08:13,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:13,490 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:13,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2022-03-01 17:08:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 1494. [2022-03-01 17:08:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1494 states, 1493 states have (on average 3.955793703951775) internal successors, (5906), 1493 states have internal predecessors, (5906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 5906 transitions. [2022-03-01 17:08:13,521 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 5906 transitions. Word has length 25 [2022-03-01 17:08:13,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:13,521 INFO L470 AbstractCegarLoop]: Abstraction has 1494 states and 5906 transitions. [2022-03-01 17:08:13,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 5906 transitions. [2022-03-01 17:08:13,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:13,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:13,523 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] [2022-03-01 17:08:13,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-01 17:08:13,523 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:13,523 INFO L85 PathProgramCache]: Analyzing trace with hash 648612117, now seen corresponding path program 236 times [2022-03-01 17:08:13,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:13,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009117360] [2022-03-01 17:08:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:13,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:13,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:13,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009117360] [2022-03-01 17:08:13,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009117360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:13,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:13,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:13,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736085859] [2022-03-01 17:08:13,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:13,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:13,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:13,603 INFO L87 Difference]: Start difference. First operand 1494 states and 5906 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:13,688 INFO L93 Difference]: Finished difference Result 3154 states and 11704 transitions. [2022-03-01 17:08:13,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:13,688 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:13,696 INFO L225 Difference]: With dead ends: 3154 [2022-03-01 17:08:13,696 INFO L226 Difference]: Without dead ends: 2955 [2022-03-01 17:08:13,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:13,696 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:13,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 153 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:13,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2022-03-01 17:08:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 1470. [2022-03-01 17:08:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.960517358747447) internal successors, (5818), 1469 states have internal predecessors, (5818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5818 transitions. [2022-03-01 17:08:13,728 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5818 transitions. Word has length 25 [2022-03-01 17:08:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:13,728 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5818 transitions. [2022-03-01 17:08:13,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5818 transitions. [2022-03-01 17:08:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:13,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:13,730 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] [2022-03-01 17:08:13,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-01 17:08:13,730 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:13,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:13,731 INFO L85 PathProgramCache]: Analyzing trace with hash 237896725, now seen corresponding path program 237 times [2022-03-01 17:08:13,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:13,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438821928] [2022-03-01 17:08:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:13,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:13,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:13,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438821928] [2022-03-01 17:08:13,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438821928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:13,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:13,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:13,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202082379] [2022-03-01 17:08:13,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:13,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:13,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:13,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:13,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:13,809 INFO L87 Difference]: Start difference. First operand 1470 states and 5818 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:13,897 INFO L93 Difference]: Finished difference Result 3189 states and 11815 transitions. [2022-03-01 17:08:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:13,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:13,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:13,905 INFO L225 Difference]: With dead ends: 3189 [2022-03-01 17:08:13,905 INFO L226 Difference]: Without dead ends: 3002 [2022-03-01 17:08:13,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:13,905 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:13,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 152 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:13,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2022-03-01 17:08:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 1516. [2022-03-01 17:08:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1515 states have (on average 3.943894389438944) internal successors, (5975), 1515 states have internal predecessors, (5975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 5975 transitions. [2022-03-01 17:08:13,938 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 5975 transitions. Word has length 25 [2022-03-01 17:08:13,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:13,938 INFO L470 AbstractCegarLoop]: Abstraction has 1516 states and 5975 transitions. [2022-03-01 17:08:13,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:13,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 5975 transitions. [2022-03-01 17:08:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:13,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:13,940 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] [2022-03-01 17:08:13,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-01 17:08:13,941 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:13,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:13,941 INFO L85 PathProgramCache]: Analyzing trace with hash -280202347, now seen corresponding path program 238 times [2022-03-01 17:08:13,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:13,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37140631] [2022-03-01 17:08:13,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:13,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:14,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:14,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37140631] [2022-03-01 17:08:14,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37140631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:14,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:14,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:14,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516845347] [2022-03-01 17:08:14,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:14,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:14,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:14,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:14,021 INFO L87 Difference]: Start difference. First operand 1516 states and 5975 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:14,109 INFO L93 Difference]: Finished difference Result 3224 states and 11904 transitions. [2022-03-01 17:08:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:14,116 INFO L225 Difference]: With dead ends: 3224 [2022-03-01 17:08:14,116 INFO L226 Difference]: Without dead ends: 2956 [2022-03-01 17:08:14,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:14,117 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:14,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 174 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-03-01 17:08:14,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1470. [2022-03-01 17:08:14,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1470 states, 1469 states have (on average 3.9469026548672566) internal successors, (5798), 1469 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 5798 transitions. [2022-03-01 17:08:14,149 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 5798 transitions. Word has length 25 [2022-03-01 17:08:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:14,149 INFO L470 AbstractCegarLoop]: Abstraction has 1470 states and 5798 transitions. [2022-03-01 17:08:14,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 5798 transitions. [2022-03-01 17:08:14,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:14,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:14,151 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] [2022-03-01 17:08:14,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-01 17:08:14,151 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:14,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1355026569, now seen corresponding path program 239 times [2022-03-01 17:08:14,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:14,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312118729] [2022-03-01 17:08:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:14,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:14,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:14,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312118729] [2022-03-01 17:08:14,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312118729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:14,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:14,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:14,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560393884] [2022-03-01 17:08:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:14,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:14,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:14,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:14,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:14,251 INFO L87 Difference]: Start difference. First operand 1470 states and 5798 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:14,331 INFO L93 Difference]: Finished difference Result 3159 states and 11692 transitions. [2022-03-01 17:08:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:14,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:14,338 INFO L225 Difference]: With dead ends: 3159 [2022-03-01 17:08:14,338 INFO L226 Difference]: Without dead ends: 2984 [2022-03-01 17:08:14,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:14,338 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 112 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:14,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 135 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:14,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-03-01 17:08:14,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 1510. [2022-03-01 17:08:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1509 states have (on average 3.9350563286944995) internal successors, (5938), 1509 states have internal predecessors, (5938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 5938 transitions. [2022-03-01 17:08:14,381 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 5938 transitions. Word has length 25 [2022-03-01 17:08:14,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:14,381 INFO L470 AbstractCegarLoop]: Abstraction has 1510 states and 5938 transitions. [2022-03-01 17:08:14,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 5938 transitions. [2022-03-01 17:08:14,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:14,383 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:14,383 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] [2022-03-01 17:08:14,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-01 17:08:14,383 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:14,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:14,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1118905301, now seen corresponding path program 240 times [2022-03-01 17:08:14,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:14,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338946911] [2022-03-01 17:08:14,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:14,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:14,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:14,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338946911] [2022-03-01 17:08:14,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338946911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:14,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:14,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:14,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027010045] [2022-03-01 17:08:14,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:14,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:14,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:14,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:14,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:14,463 INFO L87 Difference]: Start difference. First operand 1510 states and 5938 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:14,551 INFO L93 Difference]: Finished difference Result 3111 states and 11492 transitions. [2022-03-01 17:08:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:14,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:14,558 INFO L225 Difference]: With dead ends: 3111 [2022-03-01 17:08:14,558 INFO L226 Difference]: Without dead ends: 2803 [2022-03-01 17:08:14,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:14,558 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 94 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:14,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 171 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:14,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-01 17:08:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1424. [2022-03-01 17:08:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.9880534082923402) internal successors, (5675), 1423 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5675 transitions. [2022-03-01 17:08:14,587 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5675 transitions. Word has length 25 [2022-03-01 17:08:14,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:14,587 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5675 transitions. [2022-03-01 17:08:14,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5675 transitions. [2022-03-01 17:08:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:14,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:14,589 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] [2022-03-01 17:08:14,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-01 17:08:14,589 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:14,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:14,589 INFO L85 PathProgramCache]: Analyzing trace with hash 209646935, now seen corresponding path program 241 times [2022-03-01 17:08:14,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:14,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969529474] [2022-03-01 17:08:14,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:14,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:14,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:14,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:14,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969529474] [2022-03-01 17:08:14,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969529474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:14,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:14,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:14,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465501313] [2022-03-01 17:08:14,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:14,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:14,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:14,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:14,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:14,666 INFO L87 Difference]: Start difference. First operand 1424 states and 5675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:14,747 INFO L93 Difference]: Finished difference Result 3076 states and 11383 transitions. [2022-03-01 17:08:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:14,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:14,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:14,754 INFO L225 Difference]: With dead ends: 3076 [2022-03-01 17:08:14,754 INFO L226 Difference]: Without dead ends: 2917 [2022-03-01 17:08:14,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:14,754 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 127 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:14,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 144 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-03-01 17:08:14,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1480. [2022-03-01 17:08:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1479 states have (on average 3.980392156862745) internal successors, (5887), 1479 states have internal predecessors, (5887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 5887 transitions. [2022-03-01 17:08:14,785 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 5887 transitions. Word has length 25 [2022-03-01 17:08:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:14,785 INFO L470 AbstractCegarLoop]: Abstraction has 1480 states and 5887 transitions. [2022-03-01 17:08:14,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 5887 transitions. [2022-03-01 17:08:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:14,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:14,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:14,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-01 17:08:14,788 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -798651049, now seen corresponding path program 242 times [2022-03-01 17:08:14,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:14,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929265053] [2022-03-01 17:08:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:14,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:14,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:14,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929265053] [2022-03-01 17:08:14,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929265053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:14,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:14,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:14,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444774801] [2022-03-01 17:08:14,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:14,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:14,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:14,912 INFO L87 Difference]: Start difference. First operand 1480 states and 5887 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:15,009 INFO L93 Difference]: Finished difference Result 3139 states and 11590 transitions. [2022-03-01 17:08:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:15,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:15,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:15,016 INFO L225 Difference]: With dead ends: 3139 [2022-03-01 17:08:15,017 INFO L226 Difference]: Without dead ends: 2885 [2022-03-01 17:08:15,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:15,017 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:15,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 152 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2885 states. [2022-03-01 17:08:15,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2885 to 1448. [2022-03-01 17:08:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.979958534899793) internal successors, (5759), 1447 states have internal predecessors, (5759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5759 transitions. [2022-03-01 17:08:15,047 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5759 transitions. Word has length 25 [2022-03-01 17:08:15,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:15,047 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5759 transitions. [2022-03-01 17:08:15,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5759 transitions. [2022-03-01 17:08:15,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:15,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:15,049 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] [2022-03-01 17:08:15,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-01 17:08:15,050 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:15,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:15,050 INFO L85 PathProgramCache]: Analyzing trace with hash 248261619, now seen corresponding path program 243 times [2022-03-01 17:08:15,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:15,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572251970] [2022-03-01 17:08:15,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:15,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:15,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:15,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:15,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572251970] [2022-03-01 17:08:15,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572251970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:15,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:15,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:15,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834622942] [2022-03-01 17:08:15,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:15,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:15,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:15,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:15,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:15,150 INFO L87 Difference]: Start difference. First operand 1448 states and 5759 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:15,243 INFO L93 Difference]: Finished difference Result 3027 states and 11189 transitions. [2022-03-01 17:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:15,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:15,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:15,250 INFO L225 Difference]: With dead ends: 3027 [2022-03-01 17:08:15,250 INFO L226 Difference]: Without dead ends: 2868 [2022-03-01 17:08:15,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:15,250 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 106 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:15,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 154 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2022-03-01 17:08:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 1464. [2022-03-01 17:08:15,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.969241285030759) internal successors, (5807), 1463 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5807 transitions. [2022-03-01 17:08:15,276 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5807 transitions. Word has length 25 [2022-03-01 17:08:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:15,277 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5807 transitions. [2022-03-01 17:08:15,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5807 transitions. [2022-03-01 17:08:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:15,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:15,279 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] [2022-03-01 17:08:15,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-01 17:08:15,279 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1341673131, now seen corresponding path program 244 times [2022-03-01 17:08:15,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:15,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652035763] [2022-03-01 17:08:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:15,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:15,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652035763] [2022-03-01 17:08:15,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652035763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:15,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:15,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:15,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674843640] [2022-03-01 17:08:15,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:15,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:15,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:15,381 INFO L87 Difference]: Start difference. First operand 1464 states and 5807 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:15,484 INFO L93 Difference]: Finished difference Result 3057 states and 11282 transitions. [2022-03-01 17:08:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:15,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:15,490 INFO L225 Difference]: With dead ends: 3057 [2022-03-01 17:08:15,490 INFO L226 Difference]: Without dead ends: 2852 [2022-03-01 17:08:15,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:15,491 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:15,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 156 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:15,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-03-01 17:08:15,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1448. [2022-03-01 17:08:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9744298548721493) internal successors, (5751), 1447 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5751 transitions. [2022-03-01 17:08:15,516 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5751 transitions. Word has length 25 [2022-03-01 17:08:15,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:15,517 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5751 transitions. [2022-03-01 17:08:15,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5751 transitions. [2022-03-01 17:08:15,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:15,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:15,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:15,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-01 17:08:15,519 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:15,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:15,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1979836617, now seen corresponding path program 245 times [2022-03-01 17:08:15,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:15,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016414] [2022-03-01 17:08:15,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:15,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:15,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:15,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016414] [2022-03-01 17:08:15,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:15,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:15,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:15,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470152444] [2022-03-01 17:08:15,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:15,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:15,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:15,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:15,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:15,621 INFO L87 Difference]: Start difference. First operand 1448 states and 5751 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:15,734 INFO L93 Difference]: Finished difference Result 3167 states and 11687 transitions. [2022-03-01 17:08:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:15,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:15,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:15,740 INFO L225 Difference]: With dead ends: 3167 [2022-03-01 17:08:15,740 INFO L226 Difference]: Without dead ends: 2978 [2022-03-01 17:08:15,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:15,741 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:15,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 169 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:15,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2022-03-01 17:08:15,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 1511. [2022-03-01 17:08:15,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1510 states have (on average 3.9456953642384107) internal successors, (5958), 1510 states have internal predecessors, (5958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 5958 transitions. [2022-03-01 17:08:15,771 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 5958 transitions. Word has length 25 [2022-03-01 17:08:15,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:15,772 INFO L470 AbstractCegarLoop]: Abstraction has 1511 states and 5958 transitions. [2022-03-01 17:08:15,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:15,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 5958 transitions. [2022-03-01 17:08:15,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:15,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:15,774 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] [2022-03-01 17:08:15,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-01 17:08:15,774 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:15,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:15,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1681783659, now seen corresponding path program 246 times [2022-03-01 17:08:15,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:15,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876688282] [2022-03-01 17:08:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:15,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:15,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:15,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876688282] [2022-03-01 17:08:15,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876688282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:15,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:15,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:15,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865128945] [2022-03-01 17:08:15,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:15,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:15,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:15,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:15,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:15,891 INFO L87 Difference]: Start difference. First operand 1511 states and 5958 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:16,014 INFO L93 Difference]: Finished difference Result 3200 states and 11770 transitions. [2022-03-01 17:08:16,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:16,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:16,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:16,021 INFO L225 Difference]: With dead ends: 3200 [2022-03-01 17:08:16,021 INFO L226 Difference]: Without dead ends: 2891 [2022-03-01 17:08:16,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:16,021 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:16,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 175 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2022-03-01 17:08:16,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 1424. [2022-03-01 17:08:16,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.9796205200281096) internal successors, (5663), 1423 states have internal predecessors, (5663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5663 transitions. [2022-03-01 17:08:16,047 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5663 transitions. Word has length 25 [2022-03-01 17:08:16,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:16,047 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5663 transitions. [2022-03-01 17:08:16,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5663 transitions. [2022-03-01 17:08:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:16,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:16,049 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] [2022-03-01 17:08:16,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-01 17:08:16,049 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1764370955, now seen corresponding path program 247 times [2022-03-01 17:08:16,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:16,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688408458] [2022-03-01 17:08:16,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:16,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:16,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688408458] [2022-03-01 17:08:16,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688408458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:16,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:16,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:16,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77882913] [2022-03-01 17:08:16,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:16,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:16,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:16,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:16,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:16,151 INFO L87 Difference]: Start difference. First operand 1424 states and 5663 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:16,254 INFO L93 Difference]: Finished difference Result 3043 states and 11268 transitions. [2022-03-01 17:08:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:16,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:16,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:16,261 INFO L225 Difference]: With dead ends: 3043 [2022-03-01 17:08:16,261 INFO L226 Difference]: Without dead ends: 2884 [2022-03-01 17:08:16,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:16,262 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:16,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 139 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:16,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2022-03-01 17:08:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 1472. [2022-03-01 17:08:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1471 states have (on average 3.9748470428280083) internal successors, (5847), 1471 states have internal predecessors, (5847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 5847 transitions. [2022-03-01 17:08:16,294 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 5847 transitions. Word has length 25 [2022-03-01 17:08:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:16,294 INFO L470 AbstractCegarLoop]: Abstraction has 1472 states and 5847 transitions. [2022-03-01 17:08:16,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 5847 transitions. [2022-03-01 17:08:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:16,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:16,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:16,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-01 17:08:16,297 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1522298357, now seen corresponding path program 248 times [2022-03-01 17:08:16,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:16,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843373973] [2022-03-01 17:08:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:16,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:16,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843373973] [2022-03-01 17:08:16,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843373973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:16,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:16,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:16,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974978229] [2022-03-01 17:08:16,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:16,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:16,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:16,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:16,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:16,396 INFO L87 Difference]: Start difference. First operand 1472 states and 5847 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:16,488 INFO L93 Difference]: Finished difference Result 3106 states and 11475 transitions. [2022-03-01 17:08:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:16,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:16,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:16,495 INFO L225 Difference]: With dead ends: 3106 [2022-03-01 17:08:16,495 INFO L226 Difference]: Without dead ends: 2852 [2022-03-01 17:08:16,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:16,496 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 110 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:16,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 156 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-03-01 17:08:16,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 1440. [2022-03-01 17:08:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.974287699791522) internal successors, (5719), 1439 states have internal predecessors, (5719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5719 transitions. [2022-03-01 17:08:16,524 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5719 transitions. Word has length 25 [2022-03-01 17:08:16,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:16,524 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5719 transitions. [2022-03-01 17:08:16,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5719 transitions. [2022-03-01 17:08:16,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:16,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:16,526 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] [2022-03-01 17:08:16,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-01 17:08:16,527 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:16,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash 269418903, now seen corresponding path program 249 times [2022-03-01 17:08:16,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:16,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035631853] [2022-03-01 17:08:16,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:16,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:16,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035631853] [2022-03-01 17:08:16,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035631853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:16,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:16,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:16,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972402691] [2022-03-01 17:08:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:16,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:16,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:16,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:16,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:16,628 INFO L87 Difference]: Start difference. First operand 1440 states and 5719 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:16,720 INFO L93 Difference]: Finished difference Result 2988 states and 11057 transitions. [2022-03-01 17:08:16,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:16,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:16,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:16,727 INFO L225 Difference]: With dead ends: 2988 [2022-03-01 17:08:16,727 INFO L226 Difference]: Without dead ends: 2829 [2022-03-01 17:08:16,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:16,727 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:16,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 148 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:16,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2022-03-01 17:08:16,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 1456. [2022-03-01 17:08:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.963573883161512) internal successors, (5767), 1455 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5767 transitions. [2022-03-01 17:08:16,754 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5767 transitions. Word has length 25 [2022-03-01 17:08:16,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:16,754 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5767 transitions. [2022-03-01 17:08:16,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5767 transitions. [2022-03-01 17:08:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:16,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:16,757 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] [2022-03-01 17:08:16,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-01 17:08:16,757 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:16,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1949915543, now seen corresponding path program 250 times [2022-03-01 17:08:16,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:16,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274162464] [2022-03-01 17:08:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:16,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:17,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:17,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274162464] [2022-03-01 17:08:17,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274162464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:17,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:17,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:17,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860624897] [2022-03-01 17:08:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:17,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:17,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:17,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:17,015 INFO L87 Difference]: Start difference. First operand 1456 states and 5767 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:17,122 INFO L93 Difference]: Finished difference Result 3012 states and 11133 transitions. [2022-03-01 17:08:17,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:17,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:17,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:17,131 INFO L225 Difference]: With dead ends: 3012 [2022-03-01 17:08:17,132 INFO L226 Difference]: Without dead ends: 2813 [2022-03-01 17:08:17,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:17,132 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:17,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2022-03-01 17:08:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 1440. [2022-03-01 17:08:17,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.968728283530229) internal successors, (5711), 1439 states have internal predecessors, (5711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5711 transitions. [2022-03-01 17:08:17,171 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5711 transitions. Word has length 25 [2022-03-01 17:08:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:17,171 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5711 transitions. [2022-03-01 17:08:17,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5711 transitions. [2022-03-01 17:08:17,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:17,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:17,175 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] [2022-03-01 17:08:17,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-01 17:08:17,175 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:17,175 INFO L85 PathProgramCache]: Analyzing trace with hash -656805481, now seen corresponding path program 251 times [2022-03-01 17:08:17,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:17,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534863395] [2022-03-01 17:08:17,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:17,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:17,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:17,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534863395] [2022-03-01 17:08:17,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534863395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:17,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:17,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:17,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973986448] [2022-03-01 17:08:17,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:17,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:17,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:17,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:17,271 INFO L87 Difference]: Start difference. First operand 1440 states and 5711 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:17,369 INFO L93 Difference]: Finished difference Result 3103 states and 11480 transitions. [2022-03-01 17:08:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:17,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:17,379 INFO L225 Difference]: With dead ends: 3103 [2022-03-01 17:08:17,379 INFO L226 Difference]: Without dead ends: 2920 [2022-03-01 17:08:17,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:17,379 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:17,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 147 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2022-03-01 17:08:17,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 1484. [2022-03-01 17:08:17,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1483 states have (on average 3.9534726904922453) internal successors, (5863), 1483 states have internal predecessors, (5863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 5863 transitions. [2022-03-01 17:08:17,423 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 5863 transitions. Word has length 25 [2022-03-01 17:08:17,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:17,423 INFO L470 AbstractCegarLoop]: Abstraction has 1484 states and 5863 transitions. [2022-03-01 17:08:17,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 5863 transitions. [2022-03-01 17:08:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:17,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:17,427 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] [2022-03-01 17:08:17,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-01 17:08:17,430 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:17,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:17,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1661137419, now seen corresponding path program 252 times [2022-03-01 17:08:17,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:17,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885323470] [2022-03-01 17:08:17,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:17,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:17,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:17,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885323470] [2022-03-01 17:08:17,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885323470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:17,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:17,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:17,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890933928] [2022-03-01 17:08:17,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:17,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:17,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:17,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:17,554 INFO L87 Difference]: Start difference. First operand 1484 states and 5863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:17,664 INFO L93 Difference]: Finished difference Result 3142 states and 11583 transitions. [2022-03-01 17:08:17,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:17,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:17,673 INFO L225 Difference]: With dead ends: 3142 [2022-03-01 17:08:17,673 INFO L226 Difference]: Without dead ends: 2860 [2022-03-01 17:08:17,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:17,674 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:17,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-03-01 17:08:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1424. [2022-03-01 17:08:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.9739985945186227) internal successors, (5655), 1423 states have internal predecessors, (5655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5655 transitions. [2022-03-01 17:08:17,718 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5655 transitions. Word has length 25 [2022-03-01 17:08:17,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:17,718 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5655 transitions. [2022-03-01 17:08:17,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5655 transitions. [2022-03-01 17:08:17,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:17,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:17,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:17,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-01 17:08:17,722 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:17,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1069767471, now seen corresponding path program 253 times [2022-03-01 17:08:17,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:17,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306232011] [2022-03-01 17:08:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:17,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:17,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:17,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306232011] [2022-03-01 17:08:17,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306232011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:17,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:17,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:17,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116890596] [2022-03-01 17:08:17,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:17,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:17,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:17,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:17,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:17,834 INFO L87 Difference]: Start difference. First operand 1424 states and 5655 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:17,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:17,959 INFO L93 Difference]: Finished difference Result 2921 states and 10804 transitions. [2022-03-01 17:08:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:17,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:17,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:17,966 INFO L225 Difference]: With dead ends: 2921 [2022-03-01 17:08:17,966 INFO L226 Difference]: Without dead ends: 2762 [2022-03-01 17:08:17,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:17,967 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 114 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:17,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 148 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:17,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-03-01 17:08:17,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1448. [2022-03-01 17:08:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9661368348306842) internal successors, (5739), 1447 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5739 transitions. [2022-03-01 17:08:18,004 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5739 transitions. Word has length 25 [2022-03-01 17:08:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:18,004 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5739 transitions. [2022-03-01 17:08:18,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5739 transitions. [2022-03-01 17:08:18,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:18,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:18,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:18,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-01 17:08:18,007 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:18,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1635265075, now seen corresponding path program 254 times [2022-03-01 17:08:18,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:18,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343306325] [2022-03-01 17:08:18,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:18,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:18,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:18,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343306325] [2022-03-01 17:08:18,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343306325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:18,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:18,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:18,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467796989] [2022-03-01 17:08:18,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:18,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:18,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:18,101 INFO L87 Difference]: Start difference. First operand 1448 states and 5739 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:18,196 INFO L93 Difference]: Finished difference Result 2951 states and 10897 transitions. [2022-03-01 17:08:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:18,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:18,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:18,203 INFO L225 Difference]: With dead ends: 2951 [2022-03-01 17:08:18,203 INFO L226 Difference]: Without dead ends: 2746 [2022-03-01 17:08:18,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:18,204 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:18,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-03-01 17:08:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 1432. [2022-03-01 17:08:18,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.971348707197764) internal successors, (5683), 1431 states have internal predecessors, (5683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5683 transitions. [2022-03-01 17:08:18,234 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5683 transitions. Word has length 25 [2022-03-01 17:08:18,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:18,235 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5683 transitions. [2022-03-01 17:08:18,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5683 transitions. [2022-03-01 17:08:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:18,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:18,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:18,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-01 17:08:18,237 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:18,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:18,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1276575437, now seen corresponding path program 255 times [2022-03-01 17:08:18,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:18,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289030494] [2022-03-01 17:08:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:18,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:18,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:18,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289030494] [2022-03-01 17:08:18,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289030494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:18,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:18,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:18,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469374609] [2022-03-01 17:08:18,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:18,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:18,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:18,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:18,318 INFO L87 Difference]: Start difference. First operand 1432 states and 5683 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:18,397 INFO L93 Difference]: Finished difference Result 2915 states and 10779 transitions. [2022-03-01 17:08:18,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:18,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:18,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:18,404 INFO L225 Difference]: With dead ends: 2915 [2022-03-01 17:08:18,404 INFO L226 Difference]: Without dead ends: 2756 [2022-03-01 17:08:18,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:18,404 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:18,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 160 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:18,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2022-03-01 17:08:18,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1448. [2022-03-01 17:08:18,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9606081548030407) internal successors, (5731), 1447 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5731 transitions. [2022-03-01 17:08:18,437 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5731 transitions. Word has length 25 [2022-03-01 17:08:18,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:18,438 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5731 transitions. [2022-03-01 17:08:18,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5731 transitions. [2022-03-01 17:08:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:18,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:18,440 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] [2022-03-01 17:08:18,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-01 17:08:18,441 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:18,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:18,441 INFO L85 PathProgramCache]: Analyzing trace with hash 403921203, now seen corresponding path program 256 times [2022-03-01 17:08:18,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:18,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131769581] [2022-03-01 17:08:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:18,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:18,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:18,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131769581] [2022-03-01 17:08:18,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131769581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:18,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:18,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:18,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703101524] [2022-03-01 17:08:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:18,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:18,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:18,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:18,581 INFO L87 Difference]: Start difference. First operand 1448 states and 5731 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:18,702 INFO L93 Difference]: Finished difference Result 2939 states and 10855 transitions. [2022-03-01 17:08:18,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:18,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:18,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:18,709 INFO L225 Difference]: With dead ends: 2939 [2022-03-01 17:08:18,710 INFO L226 Difference]: Without dead ends: 2740 [2022-03-01 17:08:18,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:18,710 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:18,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:18,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-03-01 17:08:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 1432. [2022-03-01 17:08:18,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.96575821104123) internal successors, (5675), 1431 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5675 transitions. [2022-03-01 17:08:18,742 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5675 transitions. Word has length 25 [2022-03-01 17:08:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:18,742 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5675 transitions. [2022-03-01 17:08:18,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5675 transitions. [2022-03-01 17:08:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:18,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:18,744 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] [2022-03-01 17:08:18,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-01 17:08:18,744 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:18,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:18,745 INFO L85 PathProgramCache]: Analyzing trace with hash 140586517, now seen corresponding path program 257 times [2022-03-01 17:08:18,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:18,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164349130] [2022-03-01 17:08:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:18,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:18,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:18,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164349130] [2022-03-01 17:08:18,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164349130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:18,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:18,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:18,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13589386] [2022-03-01 17:08:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:18,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:18,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:18,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:18,864 INFO L87 Difference]: Start difference. First operand 1432 states and 5675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:18,982 INFO L93 Difference]: Finished difference Result 2987 states and 11041 transitions. [2022-03-01 17:08:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:18,989 INFO L225 Difference]: With dead ends: 2987 [2022-03-01 17:08:18,990 INFO L226 Difference]: Without dead ends: 2798 [2022-03-01 17:08:18,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:18,990 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:18,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-03-01 17:08:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1460. [2022-03-01 17:08:19,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1459 states have (on average 3.949965729952022) internal successors, (5763), 1459 states have internal predecessors, (5763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 5763 transitions. [2022-03-01 17:08:19,021 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 5763 transitions. Word has length 25 [2022-03-01 17:08:19,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:19,021 INFO L470 AbstractCegarLoop]: Abstraction has 1460 states and 5763 transitions. [2022-03-01 17:08:19,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 5763 transitions. [2022-03-01 17:08:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:19,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:19,023 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] [2022-03-01 17:08:19,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-01 17:08:19,023 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:19,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1251558029, now seen corresponding path program 258 times [2022-03-01 17:08:19,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:19,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940595988] [2022-03-01 17:08:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:19,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:19,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:19,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940595988] [2022-03-01 17:08:19,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940595988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:19,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:19,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:19,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904526615] [2022-03-01 17:08:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:19,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:19,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:19,144 INFO L87 Difference]: Start difference. First operand 1460 states and 5763 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:19,271 INFO L93 Difference]: Finished difference Result 2981 states and 10996 transitions. [2022-03-01 17:08:19,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:19,271 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:19,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:19,278 INFO L225 Difference]: With dead ends: 2981 [2022-03-01 17:08:19,278 INFO L226 Difference]: Without dead ends: 2762 [2022-03-01 17:08:19,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:19,278 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 91 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:19,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2022-03-01 17:08:19,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1424. [2022-03-01 17:08:19,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1423 states have (on average 3.971187631763879) internal successors, (5651), 1423 states have internal predecessors, (5651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 5651 transitions. [2022-03-01 17:08:19,309 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 5651 transitions. Word has length 25 [2022-03-01 17:08:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:19,309 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 5651 transitions. [2022-03-01 17:08:19,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 5651 transitions. [2022-03-01 17:08:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:19,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:19,311 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] [2022-03-01 17:08:19,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-01 17:08:19,311 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:19,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1045799799, now seen corresponding path program 259 times [2022-03-01 17:08:19,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:19,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572152461] [2022-03-01 17:08:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:19,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:19,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572152461] [2022-03-01 17:08:19,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572152461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:19,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:19,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:19,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174154641] [2022-03-01 17:08:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:19,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:19,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:19,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:19,398 INFO L87 Difference]: Start difference. First operand 1424 states and 5651 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:19,488 INFO L93 Difference]: Finished difference Result 3147 states and 11659 transitions. [2022-03-01 17:08:19,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:19,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:19,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:19,496 INFO L225 Difference]: With dead ends: 3147 [2022-03-01 17:08:19,496 INFO L226 Difference]: Without dead ends: 2958 [2022-03-01 17:08:19,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:19,496 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:19,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:19,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-03-01 17:08:19,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 1482. [2022-03-01 17:08:19,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 3.962187711006077) internal successors, (5868), 1481 states have internal predecessors, (5868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 5868 transitions. [2022-03-01 17:08:19,526 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 5868 transitions. Word has length 25 [2022-03-01 17:08:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:19,526 INFO L470 AbstractCegarLoop]: Abstraction has 1482 states and 5868 transitions. [2022-03-01 17:08:19,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 5868 transitions. [2022-03-01 17:08:19,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:19,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:19,528 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] [2022-03-01 17:08:19,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-01 17:08:19,528 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:19,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:19,529 INFO L85 PathProgramCache]: Analyzing trace with hash -346344747, now seen corresponding path program 260 times [2022-03-01 17:08:19,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:19,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184371201] [2022-03-01 17:08:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:19,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:19,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:19,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184371201] [2022-03-01 17:08:19,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184371201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:19,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:19,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:19,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930329791] [2022-03-01 17:08:19,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:19,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:19,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:19,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:19,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:19,607 INFO L87 Difference]: Start difference. First operand 1482 states and 5868 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:19,701 INFO L93 Difference]: Finished difference Result 3141 states and 11614 transitions. [2022-03-01 17:08:19,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:19,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:19,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:19,707 INFO L225 Difference]: With dead ends: 3141 [2022-03-01 17:08:19,707 INFO L226 Difference]: Without dead ends: 2930 [2022-03-01 17:08:19,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:19,708 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:19,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 144 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:19,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-03-01 17:08:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1454. [2022-03-01 17:08:19,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 3.9683413626978665) internal successors, (5766), 1453 states have internal predecessors, (5766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5766 transitions. [2022-03-01 17:08:19,736 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5766 transitions. Word has length 25 [2022-03-01 17:08:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:19,736 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5766 transitions. [2022-03-01 17:08:19,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5766 transitions. [2022-03-01 17:08:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:19,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:19,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:19,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-01 17:08:19,738 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:19,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:19,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2044518315, now seen corresponding path program 261 times [2022-03-01 17:08:19,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:19,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895088645] [2022-03-01 17:08:19,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:19,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:19,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:19,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895088645] [2022-03-01 17:08:19,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895088645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:19,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:19,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:19,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051444436] [2022-03-01 17:08:19,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:19,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:19,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:19,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:19,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:19,813 INFO L87 Difference]: Start difference. First operand 1454 states and 5766 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:19,892 INFO L93 Difference]: Finished difference Result 3221 states and 11898 transitions. [2022-03-01 17:08:19,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:19,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:19,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:19,899 INFO L225 Difference]: With dead ends: 3221 [2022-03-01 17:08:19,899 INFO L226 Difference]: Without dead ends: 3032 [2022-03-01 17:08:19,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:19,899 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:19,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 137 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:19,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-03-01 17:08:19,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1517. [2022-03-01 17:08:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1516 states have (on average 3.9399736147757256) internal successors, (5973), 1516 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 5973 transitions. [2022-03-01 17:08:19,929 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 5973 transitions. Word has length 25 [2022-03-01 17:08:19,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:19,929 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 5973 transitions. [2022-03-01 17:08:19,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:19,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 5973 transitions. [2022-03-01 17:08:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:19,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:19,932 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] [2022-03-01 17:08:19,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-01 17:08:19,932 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:19,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1312436011, now seen corresponding path program 262 times [2022-03-01 17:08:19,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:19,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224890522] [2022-03-01 17:08:19,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:19,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:20,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:20,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224890522] [2022-03-01 17:08:20,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224890522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:20,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:20,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:20,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590566513] [2022-03-01 17:08:20,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:20,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:20,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:20,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:20,060 INFO L87 Difference]: Start difference. First operand 1517 states and 5973 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:20,169 INFO L93 Difference]: Finished difference Result 3254 states and 11981 transitions. [2022-03-01 17:08:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:20,178 INFO L225 Difference]: With dead ends: 3254 [2022-03-01 17:08:20,178 INFO L226 Difference]: Without dead ends: 2969 [2022-03-01 17:08:20,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:20,178 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:20,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 144 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2022-03-01 17:08:20,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1454. [2022-03-01 17:08:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 3.94769442532691) internal successors, (5736), 1453 states have internal predecessors, (5736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5736 transitions. [2022-03-01 17:08:20,214 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5736 transitions. Word has length 25 [2022-03-01 17:08:20,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:20,214 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5736 transitions. [2022-03-01 17:08:20,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5736 transitions. [2022-03-01 17:08:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:20,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:20,217 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] [2022-03-01 17:08:20,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-01 17:08:20,217 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1680260941, now seen corresponding path program 263 times [2022-03-01 17:08:20,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:20,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183777587] [2022-03-01 17:08:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:20,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:20,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183777587] [2022-03-01 17:08:20,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183777587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:20,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:20,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:20,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978121864] [2022-03-01 17:08:20,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:20,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:20,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:20,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:20,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:20,348 INFO L87 Difference]: Start difference. First operand 1454 states and 5736 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:20,466 INFO L93 Difference]: Finished difference Result 3190 states and 11776 transitions. [2022-03-01 17:08:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:20,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:20,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:20,473 INFO L225 Difference]: With dead ends: 3190 [2022-03-01 17:08:20,474 INFO L226 Difference]: Without dead ends: 3007 [2022-03-01 17:08:20,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:20,474 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:20,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2022-03-01 17:08:20,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 1498. [2022-03-01 17:08:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1497 states have (on average 3.933199732798931) internal successors, (5888), 1497 states have internal predecessors, (5888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 5888 transitions. [2022-03-01 17:08:20,505 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 5888 transitions. Word has length 25 [2022-03-01 17:08:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:20,506 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 5888 transitions. [2022-03-01 17:08:20,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 5888 transitions. [2022-03-01 17:08:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:20,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:20,508 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] [2022-03-01 17:08:20,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-01 17:08:20,508 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:20,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:20,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1545187349, now seen corresponding path program 264 times [2022-03-01 17:08:20,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:20,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686474750] [2022-03-01 17:08:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:20,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:20,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686474750] [2022-03-01 17:08:20,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686474750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:20,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:20,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:20,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395790906] [2022-03-01 17:08:20,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:20,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:20,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:20,625 INFO L87 Difference]: Start difference. First operand 1498 states and 5888 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:20,726 INFO L93 Difference]: Finished difference Result 3229 states and 11879 transitions. [2022-03-01 17:08:20,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:20,726 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:20,735 INFO L225 Difference]: With dead ends: 3229 [2022-03-01 17:08:20,735 INFO L226 Difference]: Without dead ends: 2921 [2022-03-01 17:08:20,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:20,736 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 105 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:20,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 155 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-03-01 17:08:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 1412. [2022-03-01 17:08:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9780297661233166) internal successors, (5613), 1411 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5613 transitions. [2022-03-01 17:08:20,773 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5613 transitions. Word has length 25 [2022-03-01 17:08:20,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:20,773 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5613 transitions. [2022-03-01 17:08:20,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5613 transitions. [2022-03-01 17:08:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:20,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:20,775 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] [2022-03-01 17:08:20,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-01 17:08:20,776 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1233542709, now seen corresponding path program 265 times [2022-03-01 17:08:20,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:20,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625931855] [2022-03-01 17:08:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:20,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:20,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:20,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625931855] [2022-03-01 17:08:20,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625931855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:20,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:20,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:20,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757571584] [2022-03-01 17:08:20,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:20,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:20,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:20,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:20,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:20,885 INFO L87 Difference]: Start difference. First operand 1412 states and 5613 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:20,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:20,962 INFO L93 Difference]: Finished difference Result 3022 states and 11152 transitions. [2022-03-01 17:08:20,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:20,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:20,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:20,968 INFO L225 Difference]: With dead ends: 3022 [2022-03-01 17:08:20,968 INFO L226 Difference]: Without dead ends: 2863 [2022-03-01 17:08:20,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:20,969 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:20,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 150 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:20,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2022-03-01 17:08:20,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 1444. [2022-03-01 17:08:20,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9674289674289676) internal successors, (5725), 1443 states have internal predecessors, (5725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5725 transitions. [2022-03-01 17:08:21,000 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5725 transitions. Word has length 25 [2022-03-01 17:08:21,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:21,000 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5725 transitions. [2022-03-01 17:08:21,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5725 transitions. [2022-03-01 17:08:21,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:21,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:21,002 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] [2022-03-01 17:08:21,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-01 17:08:21,002 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash 225244725, now seen corresponding path program 266 times [2022-03-01 17:08:21,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:21,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095590829] [2022-03-01 17:08:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:21,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:21,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:21,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095590829] [2022-03-01 17:08:21,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095590829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:21,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:21,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:21,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150036224] [2022-03-01 17:08:21,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:21,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:21,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:21,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:21,085 INFO L87 Difference]: Start difference. First operand 1444 states and 5725 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:21,167 INFO L93 Difference]: Finished difference Result 3085 states and 11359 transitions. [2022-03-01 17:08:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:21,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:21,174 INFO L225 Difference]: With dead ends: 3085 [2022-03-01 17:08:21,174 INFO L226 Difference]: Without dead ends: 2831 [2022-03-01 17:08:21,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:21,175 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 113 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:21,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 153 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:21,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-01 17:08:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 1412. [2022-03-01 17:08:21,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.966690290574061) internal successors, (5597), 1411 states have internal predecessors, (5597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5597 transitions. [2022-03-01 17:08:21,207 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5597 transitions. Word has length 25 [2022-03-01 17:08:21,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:21,207 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5597 transitions. [2022-03-01 17:08:21,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5597 transitions. [2022-03-01 17:08:21,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:21,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:21,209 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] [2022-03-01 17:08:21,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-01 17:08:21,210 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:21,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1272157393, now seen corresponding path program 267 times [2022-03-01 17:08:21,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:21,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269302467] [2022-03-01 17:08:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:21,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:21,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:21,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269302467] [2022-03-01 17:08:21,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269302467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:21,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:21,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:21,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717581154] [2022-03-01 17:08:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:21,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:21,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:21,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:21,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:21,314 INFO L87 Difference]: Start difference. First operand 1412 states and 5597 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:21,392 INFO L93 Difference]: Finished difference Result 2973 states and 10958 transitions. [2022-03-01 17:08:21,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:21,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:21,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:21,400 INFO L225 Difference]: With dead ends: 2973 [2022-03-01 17:08:21,400 INFO L226 Difference]: Without dead ends: 2814 [2022-03-01 17:08:21,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:21,400 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:21,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 154 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2814 states. [2022-03-01 17:08:21,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2814 to 1428. [2022-03-01 17:08:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 3.955851436580238) internal successors, (5645), 1427 states have internal predecessors, (5645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 5645 transitions. [2022-03-01 17:08:21,432 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 5645 transitions. Word has length 25 [2022-03-01 17:08:21,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:21,432 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 5645 transitions. [2022-03-01 17:08:21,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 5645 transitions. [2022-03-01 17:08:21,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:21,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:21,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:21,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-01 17:08:21,435 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:21,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:21,435 INFO L85 PathProgramCache]: Analyzing trace with hash -317777357, now seen corresponding path program 268 times [2022-03-01 17:08:21,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:21,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886314702] [2022-03-01 17:08:21,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:21,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:21,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:21,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886314702] [2022-03-01 17:08:21,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886314702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:21,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:21,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:21,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632381749] [2022-03-01 17:08:21,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:21,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:21,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:21,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:21,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:21,560 INFO L87 Difference]: Start difference. First operand 1428 states and 5645 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:21,675 INFO L93 Difference]: Finished difference Result 3003 states and 11051 transitions. [2022-03-01 17:08:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:21,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:21,683 INFO L225 Difference]: With dead ends: 3003 [2022-03-01 17:08:21,683 INFO L226 Difference]: Without dead ends: 2798 [2022-03-01 17:08:21,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:21,684 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:21,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:21,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-03-01 17:08:21,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 1412. [2022-03-01 17:08:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.961020552799433) internal successors, (5589), 1411 states have internal predecessors, (5589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5589 transitions. [2022-03-01 17:08:21,714 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5589 transitions. Word has length 25 [2022-03-01 17:08:21,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:21,714 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5589 transitions. [2022-03-01 17:08:21,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5589 transitions. [2022-03-01 17:08:21,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:21,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:21,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:21,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-01 17:08:21,717 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:21,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:21,717 INFO L85 PathProgramCache]: Analyzing trace with hash -955940843, now seen corresponding path program 269 times [2022-03-01 17:08:21,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:21,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803792159] [2022-03-01 17:08:21,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:21,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:21,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803792159] [2022-03-01 17:08:21,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803792159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:21,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:21,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:21,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474880959] [2022-03-01 17:08:21,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:21,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:21,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:21,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:21,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:21,839 INFO L87 Difference]: Start difference. First operand 1412 states and 5589 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:21,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:21,975 INFO L93 Difference]: Finished difference Result 3113 states and 11456 transitions. [2022-03-01 17:08:21,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:21,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:21,982 INFO L225 Difference]: With dead ends: 3113 [2022-03-01 17:08:21,982 INFO L226 Difference]: Without dead ends: 2924 [2022-03-01 17:08:21,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:21,983 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:21,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 154 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:21,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2022-03-01 17:08:22,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1475. [2022-03-01 17:08:22,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1474 states have (on average 3.932157394843962) internal successors, (5796), 1474 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 5796 transitions. [2022-03-01 17:08:22,014 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 5796 transitions. Word has length 25 [2022-03-01 17:08:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:22,015 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 5796 transitions. [2022-03-01 17:08:22,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 5796 transitions. [2022-03-01 17:08:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:22,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:22,017 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] [2022-03-01 17:08:22,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-01 17:08:22,017 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:22,017 INFO L85 PathProgramCache]: Analyzing trace with hash -657887885, now seen corresponding path program 270 times [2022-03-01 17:08:22,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:22,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749655167] [2022-03-01 17:08:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:22,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:22,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749655167] [2022-03-01 17:08:22,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749655167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:22,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:22,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:22,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482054821] [2022-03-01 17:08:22,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:22,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:22,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:22,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:22,144 INFO L87 Difference]: Start difference. First operand 1475 states and 5796 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:22,249 INFO L93 Difference]: Finished difference Result 3146 states and 11539 transitions. [2022-03-01 17:08:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:22,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:22,256 INFO L225 Difference]: With dead ends: 3146 [2022-03-01 17:08:22,256 INFO L226 Difference]: Without dead ends: 2837 [2022-03-01 17:08:22,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:22,256 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:22,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 141 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2022-03-01 17:08:22,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1388. [2022-03-01 17:08:22,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.966113914924297) internal successors, (5501), 1387 states have internal predecessors, (5501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5501 transitions. [2022-03-01 17:08:22,286 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5501 transitions. Word has length 25 [2022-03-01 17:08:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:22,286 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5501 transitions. [2022-03-01 17:08:22,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5501 transitions. [2022-03-01 17:08:22,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:22,288 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:22,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:22,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-01 17:08:22,288 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:22,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1979982219, now seen corresponding path program 271 times [2022-03-01 17:08:22,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:22,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446763005] [2022-03-01 17:08:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:22,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:22,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:22,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446763005] [2022-03-01 17:08:22,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446763005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:22,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:22,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:22,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231731841] [2022-03-01 17:08:22,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:22,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:22,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:22,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:22,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:22,414 INFO L87 Difference]: Start difference. First operand 1388 states and 5501 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:22,520 INFO L93 Difference]: Finished difference Result 2945 states and 10865 transitions. [2022-03-01 17:08:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:22,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:22,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:22,528 INFO L225 Difference]: With dead ends: 2945 [2022-03-01 17:08:22,528 INFO L226 Difference]: Without dead ends: 2786 [2022-03-01 17:08:22,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:22,528 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 111 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:22,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 154 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:22,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-03-01 17:08:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1436. [2022-03-01 17:08:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.961672473867596) internal successors, (5685), 1435 states have internal predecessors, (5685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5685 transitions. [2022-03-01 17:08:22,562 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5685 transitions. Word has length 25 [2022-03-01 17:08:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:22,562 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5685 transitions. [2022-03-01 17:08:22,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5685 transitions. [2022-03-01 17:08:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:22,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:22,565 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] [2022-03-01 17:08:22,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-01 17:08:22,565 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:22,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:22,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1306687093, now seen corresponding path program 272 times [2022-03-01 17:08:22,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:22,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230741988] [2022-03-01 17:08:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:22,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:22,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:22,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:22,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230741988] [2022-03-01 17:08:22,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230741988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:22,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:22,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:22,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598564953] [2022-03-01 17:08:22,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:22,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:22,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:22,692 INFO L87 Difference]: Start difference. First operand 1436 states and 5685 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:22,793 INFO L93 Difference]: Finished difference Result 3008 states and 11072 transitions. [2022-03-01 17:08:22,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:22,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:22,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:22,800 INFO L225 Difference]: With dead ends: 3008 [2022-03-01 17:08:22,800 INFO L226 Difference]: Without dead ends: 2754 [2022-03-01 17:08:22,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:22,800 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 113 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:22,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 146 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:22,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-03-01 17:08:22,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 1404. [2022-03-01 17:08:22,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9607982893799) internal successors, (5557), 1403 states have internal predecessors, (5557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5557 transitions. [2022-03-01 17:08:22,829 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5557 transitions. Word has length 25 [2022-03-01 17:08:22,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:22,829 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5557 transitions. [2022-03-01 17:08:22,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:22,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5557 transitions. [2022-03-01 17:08:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:22,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:22,832 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] [2022-03-01 17:08:22,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-01 17:08:22,832 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:22,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1098563991, now seen corresponding path program 273 times [2022-03-01 17:08:22,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:22,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174564964] [2022-03-01 17:08:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:22,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:22,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:22,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174564964] [2022-03-01 17:08:22,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174564964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:22,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:22,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:22,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213330168] [2022-03-01 17:08:22,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:22,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:22,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:22,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:22,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:22,957 INFO L87 Difference]: Start difference. First operand 1404 states and 5557 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:23,058 INFO L93 Difference]: Finished difference Result 2850 states and 10514 transitions. [2022-03-01 17:08:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:23,065 INFO L225 Difference]: With dead ends: 2850 [2022-03-01 17:08:23,065 INFO L226 Difference]: Without dead ends: 2691 [2022-03-01 17:08:23,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:23,065 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:23,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 148 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-03-01 17:08:23,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 1420. [2022-03-01 17:08:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9499647639182522) internal successors, (5605), 1419 states have internal predecessors, (5605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5605 transitions. [2022-03-01 17:08:23,093 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5605 transitions. Word has length 25 [2022-03-01 17:08:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:23,094 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5605 transitions. [2022-03-01 17:08:23,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5605 transitions. [2022-03-01 17:08:23,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:23,096 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:23,096 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] [2022-03-01 17:08:23,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-01 17:08:23,096 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:23,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:23,096 INFO L85 PathProgramCache]: Analyzing trace with hash -843708009, now seen corresponding path program 274 times [2022-03-01 17:08:23,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:23,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996479135] [2022-03-01 17:08:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:23,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:23,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996479135] [2022-03-01 17:08:23,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996479135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:23,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:23,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:23,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329267758] [2022-03-01 17:08:23,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:23,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:23,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:23,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:23,242 INFO L87 Difference]: Start difference. First operand 1420 states and 5605 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:23,352 INFO L93 Difference]: Finished difference Result 2738 states and 10177 transitions. [2022-03-01 17:08:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:23,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:23,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:23,359 INFO L225 Difference]: With dead ends: 2738 [2022-03-01 17:08:23,359 INFO L226 Difference]: Without dead ends: 2547 [2022-03-01 17:08:23,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:23,373 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:23,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:23,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-03-01 17:08:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 1404. [2022-03-01 17:08:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9550962223806128) internal successors, (5549), 1403 states have internal predecessors, (5549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5549 transitions. [2022-03-01 17:08:23,401 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5549 transitions. Word has length 25 [2022-03-01 17:08:23,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:23,401 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5549 transitions. [2022-03-01 17:08:23,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5549 transitions. [2022-03-01 17:08:23,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:23,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:23,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:23,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-01 17:08:23,403 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:23,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash 844538263, now seen corresponding path program 275 times [2022-03-01 17:08:23,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:23,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477899394] [2022-03-01 17:08:23,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:23,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:23,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:23,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477899394] [2022-03-01 17:08:23,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477899394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:23,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:23,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:23,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715310998] [2022-03-01 17:08:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:23,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:23,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:23,516 INFO L87 Difference]: Start difference. First operand 1404 states and 5549 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:23,641 INFO L93 Difference]: Finished difference Result 2985 states and 11005 transitions. [2022-03-01 17:08:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:23,641 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:23,648 INFO L225 Difference]: With dead ends: 2985 [2022-03-01 17:08:23,648 INFO L226 Difference]: Without dead ends: 2810 [2022-03-01 17:08:23,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:23,648 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:23,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 159 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-01 17:08:23,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1444. [2022-03-01 17:08:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.9424809424809424) internal successors, (5689), 1443 states have internal predecessors, (5689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5689 transitions. [2022-03-01 17:08:23,677 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5689 transitions. Word has length 25 [2022-03-01 17:08:23,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:23,677 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5689 transitions. [2022-03-01 17:08:23,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5689 transitions. [2022-03-01 17:08:23,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:23,679 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:23,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:23,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-01 17:08:23,679 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:23,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:23,680 INFO L85 PathProgramCache]: Analyzing trace with hash -810986123, now seen corresponding path program 276 times [2022-03-01 17:08:23,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:23,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163765034] [2022-03-01 17:08:23,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:23,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:23,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:23,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163765034] [2022-03-01 17:08:23,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163765034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:23,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:23,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:23,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266193248] [2022-03-01 17:08:23,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:23,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:23,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:23,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:23,796 INFO L87 Difference]: Start difference. First operand 1444 states and 5689 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:23,896 INFO L93 Difference]: Finished difference Result 2937 states and 10805 transitions. [2022-03-01 17:08:23,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:23,896 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:23,903 INFO L225 Difference]: With dead ends: 2937 [2022-03-01 17:08:23,903 INFO L226 Difference]: Without dead ends: 2659 [2022-03-01 17:08:23,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:23,903 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:23,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 134 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2022-03-01 17:08:23,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 1388. [2022-03-01 17:08:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9603460706560925) internal successors, (5493), 1387 states have internal predecessors, (5493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5493 transitions. [2022-03-01 17:08:23,930 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5493 transitions. Word has length 25 [2022-03-01 17:08:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:23,930 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5493 transitions. [2022-03-01 17:08:23,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:23,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5493 transitions. [2022-03-01 17:08:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:23,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:23,932 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] [2022-03-01 17:08:23,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-01 17:08:23,932 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:23,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:23,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1047248209, now seen corresponding path program 277 times [2022-03-01 17:08:23,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:23,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830899838] [2022-03-01 17:08:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:23,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:24,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:24,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830899838] [2022-03-01 17:08:24,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830899838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:24,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:24,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:24,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668930802] [2022-03-01 17:08:24,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:24,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:24,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:24,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:24,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:24,043 INFO L87 Difference]: Start difference. First operand 1388 states and 5493 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:24,157 INFO L93 Difference]: Finished difference Result 2839 states and 10465 transitions. [2022-03-01 17:08:24,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:24,157 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:24,164 INFO L225 Difference]: With dead ends: 2839 [2022-03-01 17:08:24,164 INFO L226 Difference]: Without dead ends: 2680 [2022-03-01 17:08:24,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:24,164 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:24,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 153 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:24,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-01 17:08:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 1412. [2022-03-01 17:08:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.952515946137491) internal successors, (5577), 1411 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5577 transitions. [2022-03-01 17:08:24,191 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5577 transitions. Word has length 25 [2022-03-01 17:08:24,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:24,191 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5577 transitions. [2022-03-01 17:08:24,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5577 transitions. [2022-03-01 17:08:24,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:24,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:24,193 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] [2022-03-01 17:08:24,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-01 17:08:24,194 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:24,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash -542686541, now seen corresponding path program 278 times [2022-03-01 17:08:24,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:24,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142553910] [2022-03-01 17:08:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:24,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:24,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:24,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142553910] [2022-03-01 17:08:24,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142553910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:24,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:24,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:24,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94003594] [2022-03-01 17:08:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:24,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:24,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:24,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:24,315 INFO L87 Difference]: Start difference. First operand 1412 states and 5577 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:24,426 INFO L93 Difference]: Finished difference Result 2869 states and 10558 transitions. [2022-03-01 17:08:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:24,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:24,432 INFO L225 Difference]: With dead ends: 2869 [2022-03-01 17:08:24,433 INFO L226 Difference]: Without dead ends: 2664 [2022-03-01 17:08:24,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:24,433 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 118 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:24,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2022-03-01 17:08:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 1396. [2022-03-01 17:08:24,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 3.957706093189964) internal successors, (5521), 1395 states have internal predecessors, (5521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 5521 transitions. [2022-03-01 17:08:24,460 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 5521 transitions. Word has length 25 [2022-03-01 17:08:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:24,461 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 5521 transitions. [2022-03-01 17:08:24,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 5521 transitions. [2022-03-01 17:08:24,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:24,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:24,463 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] [2022-03-01 17:08:24,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-01 17:08:24,463 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:24,463 INFO L85 PathProgramCache]: Analyzing trace with hash -447430349, now seen corresponding path program 279 times [2022-03-01 17:08:24,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:24,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552495039] [2022-03-01 17:08:24,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:24,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:24,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:24,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552495039] [2022-03-01 17:08:24,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552495039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:24,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:24,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:24,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059853228] [2022-03-01 17:08:24,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:24,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:24,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:24,564 INFO L87 Difference]: Start difference. First operand 1396 states and 5521 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:24,663 INFO L93 Difference]: Finished difference Result 2793 states and 10300 transitions. [2022-03-01 17:08:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:24,670 INFO L225 Difference]: With dead ends: 2793 [2022-03-01 17:08:24,670 INFO L226 Difference]: Without dead ends: 2634 [2022-03-01 17:08:24,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:24,670 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:24,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:24,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2022-03-01 17:08:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1412. [2022-03-01 17:08:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9468462083628633) internal successors, (5569), 1411 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5569 transitions. [2022-03-01 17:08:24,699 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5569 transitions. Word has length 25 [2022-03-01 17:08:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:24,699 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5569 transitions. [2022-03-01 17:08:24,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5569 transitions. [2022-03-01 17:08:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:24,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:24,701 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] [2022-03-01 17:08:24,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-01 17:08:24,701 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:24,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1905264947, now seen corresponding path program 280 times [2022-03-01 17:08:24,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:24,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375525090] [2022-03-01 17:08:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:24,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:24,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:24,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:24,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375525090] [2022-03-01 17:08:24,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375525090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:24,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:24,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:24,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538354458] [2022-03-01 17:08:24,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:24,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:24,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:24,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:24,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:24,789 INFO L87 Difference]: Start difference. First operand 1412 states and 5569 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:24,880 INFO L93 Difference]: Finished difference Result 2681 states and 9963 transitions. [2022-03-01 17:08:24,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:24,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:24,886 INFO L225 Difference]: With dead ends: 2681 [2022-03-01 17:08:24,886 INFO L226 Difference]: Without dead ends: 2490 [2022-03-01 17:08:24,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:24,887 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:24,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2022-03-01 17:08:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 1396. [2022-03-01 17:08:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1396 states, 1395 states have (on average 3.9519713261648746) internal successors, (5513), 1395 states have internal predecessors, (5513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1396 states to 1396 states and 5513 transitions. [2022-03-01 17:08:24,913 INFO L78 Accepts]: Start accepts. Automaton has 1396 states and 5513 transitions. Word has length 25 [2022-03-01 17:08:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:24,914 INFO L470 AbstractCegarLoop]: Abstraction has 1396 states and 5513 transitions. [2022-03-01 17:08:24,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1396 states and 5513 transitions. [2022-03-01 17:08:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:24,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:24,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:24,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-01 17:08:24,916 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash 969731605, now seen corresponding path program 281 times [2022-03-01 17:08:24,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:24,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835457453] [2022-03-01 17:08:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:24,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:25,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:25,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835457453] [2022-03-01 17:08:25,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835457453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:25,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:25,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:25,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105701851] [2022-03-01 17:08:25,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:25,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:25,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:25,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:25,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:25,180 INFO L87 Difference]: Start difference. First operand 1396 states and 5513 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:25,312 INFO L93 Difference]: Finished difference Result 2831 states and 10437 transitions. [2022-03-01 17:08:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:25,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:25,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:25,319 INFO L225 Difference]: With dead ends: 2831 [2022-03-01 17:08:25,319 INFO L226 Difference]: Without dead ends: 2642 [2022-03-01 17:08:25,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:25,319 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:25,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 137 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:25,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-03-01 17:08:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 1420. [2022-03-01 17:08:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.938689217758985) internal successors, (5589), 1419 states have internal predecessors, (5589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5589 transitions. [2022-03-01 17:08:25,346 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5589 transitions. Word has length 25 [2022-03-01 17:08:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:25,346 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5589 transitions. [2022-03-01 17:08:25,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5589 transitions. [2022-03-01 17:08:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:25,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:25,356 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] [2022-03-01 17:08:25,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-01 17:08:25,357 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash 228779507, now seen corresponding path program 282 times [2022-03-01 17:08:25,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:25,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605213408] [2022-03-01 17:08:25,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:25,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:25,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:25,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605213408] [2022-03-01 17:08:25,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605213408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:25,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:25,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:25,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098136736] [2022-03-01 17:08:25,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:25,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:25,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:25,479 INFO L87 Difference]: Start difference. First operand 1420 states and 5589 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:25,555 INFO L93 Difference]: Finished difference Result 2689 states and 9983 transitions. [2022-03-01 17:08:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:25,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:25,561 INFO L225 Difference]: With dead ends: 2689 [2022-03-01 17:08:25,561 INFO L226 Difference]: Without dead ends: 2482 [2022-03-01 17:08:25,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:25,562 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:25,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-03-01 17:08:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1388. [2022-03-01 17:08:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.95746214852199) internal successors, (5489), 1387 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5489 transitions. [2022-03-01 17:08:25,588 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5489 transitions. Word has length 25 [2022-03-01 17:08:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:25,588 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5489 transitions. [2022-03-01 17:08:25,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5489 transitions. [2022-03-01 17:08:25,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:25,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:25,590 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] [2022-03-01 17:08:25,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-01 17:08:25,590 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:25,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:25,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1874944887, now seen corresponding path program 283 times [2022-03-01 17:08:25,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:25,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434213756] [2022-03-01 17:08:25,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:25,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:25,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:25,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:25,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434213756] [2022-03-01 17:08:25,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434213756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:25,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:25,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:25,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131247603] [2022-03-01 17:08:25,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:25,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:25,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:25,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:25,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:25,692 INFO L87 Difference]: Start difference. First operand 1388 states and 5489 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:25,766 INFO L93 Difference]: Finished difference Result 3063 states and 11315 transitions. [2022-03-01 17:08:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:25,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:25,773 INFO L225 Difference]: With dead ends: 3063 [2022-03-01 17:08:25,773 INFO L226 Difference]: Without dead ends: 2874 [2022-03-01 17:08:25,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:25,773 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 118 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:25,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 135 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:25,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2022-03-01 17:08:25,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 1440. [2022-03-01 17:08:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.9506601806810284) internal successors, (5685), 1439 states have internal predecessors, (5685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5685 transitions. [2022-03-01 17:08:25,802 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5685 transitions. Word has length 25 [2022-03-01 17:08:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:25,802 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5685 transitions. [2022-03-01 17:08:25,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5685 transitions. [2022-03-01 17:08:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:25,804 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:25,804 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] [2022-03-01 17:08:25,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-01 17:08:25,805 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:25,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:25,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1133992789, now seen corresponding path program 284 times [2022-03-01 17:08:25,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:25,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455170526] [2022-03-01 17:08:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:25,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:25,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:25,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455170526] [2022-03-01 17:08:25,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455170526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:25,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:25,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:25,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83383005] [2022-03-01 17:08:25,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:25,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:25,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:25,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:25,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:25,913 INFO L87 Difference]: Start difference. First operand 1440 states and 5685 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:26,019 INFO L93 Difference]: Finished difference Result 3049 states and 11246 transitions. [2022-03-01 17:08:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:26,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:26,026 INFO L225 Difference]: With dead ends: 3049 [2022-03-01 17:08:26,026 INFO L226 Difference]: Without dead ends: 2850 [2022-03-01 17:08:26,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:26,026 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:26,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 149 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2022-03-01 17:08:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 1416. [2022-03-01 17:08:26,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.95547703180212) internal successors, (5597), 1415 states have internal predecessors, (5597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5597 transitions. [2022-03-01 17:08:26,056 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5597 transitions. Word has length 25 [2022-03-01 17:08:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:26,056 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5597 transitions. [2022-03-01 17:08:26,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5597 transitions. [2022-03-01 17:08:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:26,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:26,058 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] [2022-03-01 17:08:26,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-01 17:08:26,058 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:26,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:26,058 INFO L85 PathProgramCache]: Analyzing trace with hash 53909461, now seen corresponding path program 285 times [2022-03-01 17:08:26,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:26,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763334498] [2022-03-01 17:08:26,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:26,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:26,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:26,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763334498] [2022-03-01 17:08:26,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763334498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:26,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:26,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:26,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246584286] [2022-03-01 17:08:26,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:26,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:26,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:26,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:26,178 INFO L87 Difference]: Start difference. First operand 1416 states and 5597 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:26,273 INFO L93 Difference]: Finished difference Result 3086 states and 11362 transitions. [2022-03-01 17:08:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:26,280 INFO L225 Difference]: With dead ends: 3086 [2022-03-01 17:08:26,280 INFO L226 Difference]: Without dead ends: 2897 [2022-03-01 17:08:26,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:26,280 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 119 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:26,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:26,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2022-03-01 17:08:26,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 1479. [2022-03-01 17:08:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 3.9269282814614344) internal successors, (5804), 1478 states have internal predecessors, (5804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 5804 transitions. [2022-03-01 17:08:26,342 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 5804 transitions. Word has length 25 [2022-03-01 17:08:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:26,342 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 5804 transitions. [2022-03-01 17:08:26,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 5804 transitions. [2022-03-01 17:08:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:26,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:26,345 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] [2022-03-01 17:08:26,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-01 17:08:26,345 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:26,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 2073862357, now seen corresponding path program 286 times [2022-03-01 17:08:26,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:26,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661003022] [2022-03-01 17:08:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:26,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:26,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:26,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661003022] [2022-03-01 17:08:26,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661003022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:26,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:26,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:26,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197319545] [2022-03-01 17:08:26,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:26,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:26,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:26,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:26,442 INFO L87 Difference]: Start difference. First operand 1479 states and 5804 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:26,527 INFO L93 Difference]: Finished difference Result 3119 states and 11445 transitions. [2022-03-01 17:08:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:26,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:26,534 INFO L225 Difference]: With dead ends: 3119 [2022-03-01 17:08:26,534 INFO L226 Difference]: Without dead ends: 2834 [2022-03-01 17:08:26,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:26,534 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 107 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:26,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 153 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:26,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2022-03-01 17:08:26,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 1416. [2022-03-01 17:08:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.9356890459363956) internal successors, (5569), 1415 states have internal predecessors, (5569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5569 transitions. [2022-03-01 17:08:26,562 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5569 transitions. Word has length 25 [2022-03-01 17:08:26,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:26,563 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5569 transitions. [2022-03-01 17:08:26,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5569 transitions. [2022-03-01 17:08:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:26,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:26,565 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] [2022-03-01 17:08:26,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-01 17:08:26,565 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash -199923405, now seen corresponding path program 287 times [2022-03-01 17:08:26,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:26,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786324721] [2022-03-01 17:08:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:26,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:26,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:26,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786324721] [2022-03-01 17:08:26,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786324721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:26,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:26,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:26,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9058233] [2022-03-01 17:08:26,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:26,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:26,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:26,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:26,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:26,646 INFO L87 Difference]: Start difference. First operand 1416 states and 5569 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:26,734 INFO L93 Difference]: Finished difference Result 3035 states and 11170 transitions. [2022-03-01 17:08:26,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:26,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:26,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:26,740 INFO L225 Difference]: With dead ends: 3035 [2022-03-01 17:08:26,741 INFO L226 Difference]: Without dead ends: 2860 [2022-03-01 17:08:26,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:26,741 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:26,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 173 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:26,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2860 states. [2022-03-01 17:08:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2860 to 1456. [2022-03-01 17:08:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1455 states have (on average 3.9237113402061854) internal successors, (5709), 1455 states have internal predecessors, (5709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 5709 transitions. [2022-03-01 17:08:26,770 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 5709 transitions. Word has length 25 [2022-03-01 17:08:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:26,770 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 5709 transitions. [2022-03-01 17:08:26,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 5709 transitions. [2022-03-01 17:08:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:26,772 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:26,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:26,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-01 17:08:26,772 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:26,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:26,773 INFO L85 PathProgramCache]: Analyzing trace with hash 18428181, now seen corresponding path program 288 times [2022-03-01 17:08:26,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:26,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627304418] [2022-03-01 17:08:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:26,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:26,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:26,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627304418] [2022-03-01 17:08:26,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627304418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:26,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:26,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:26,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854021002] [2022-03-01 17:08:26,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:26,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:26,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:26,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:26,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:26,856 INFO L87 Difference]: Start difference. First operand 1456 states and 5709 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:26,962 INFO L93 Difference]: Finished difference Result 2987 states and 10970 transitions. [2022-03-01 17:08:26,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:26,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:26,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:26,969 INFO L225 Difference]: With dead ends: 2987 [2022-03-01 17:08:26,969 INFO L226 Difference]: Without dead ends: 2685 [2022-03-01 17:08:26,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:26,970 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:26,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 154 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-03-01 17:08:26,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 1376. [2022-03-01 17:08:26,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 3.9643636363636365) internal successors, (5451), 1375 states have internal predecessors, (5451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5451 transitions. [2022-03-01 17:08:26,998 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5451 transitions. Word has length 25 [2022-03-01 17:08:26,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:26,998 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5451 transitions. [2022-03-01 17:08:26,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:26,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5451 transitions. [2022-03-01 17:08:27,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:27,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:27,002 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] [2022-03-01 17:08:27,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-01 17:08:27,002 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:27,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:27,002 INFO L85 PathProgramCache]: Analyzing trace with hash -317194349, now seen corresponding path program 289 times [2022-03-01 17:08:27,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:27,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750683883] [2022-03-01 17:08:27,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:27,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:27,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:27,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750683883] [2022-03-01 17:08:27,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750683883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:27,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:27,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:27,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564243479] [2022-03-01 17:08:27,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:27,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:27,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:27,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:27,082 INFO L87 Difference]: Start difference. First operand 1376 states and 5451 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:27,175 INFO L93 Difference]: Finished difference Result 2920 states and 10796 transitions. [2022-03-01 17:08:27,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:27,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:27,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:27,182 INFO L225 Difference]: With dead ends: 2920 [2022-03-01 17:08:27,182 INFO L226 Difference]: Without dead ends: 2761 [2022-03-01 17:08:27,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:27,182 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 122 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:27,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 150 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:27,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-03-01 17:08:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1432. [2022-03-01 17:08:27,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.96575821104123) internal successors, (5675), 1431 states have internal predecessors, (5675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5675 transitions. [2022-03-01 17:08:27,213 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5675 transitions. Word has length 25 [2022-03-01 17:08:27,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:27,213 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5675 transitions. [2022-03-01 17:08:27,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5675 transitions. [2022-03-01 17:08:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:27,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:27,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:27,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-01 17:08:27,215 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:27,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1325492333, now seen corresponding path program 290 times [2022-03-01 17:08:27,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:27,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271741386] [2022-03-01 17:08:27,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:27,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:27,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:27,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271741386] [2022-03-01 17:08:27,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271741386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:27,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:27,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:27,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570675390] [2022-03-01 17:08:27,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:27,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:27,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:27,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:27,295 INFO L87 Difference]: Start difference. First operand 1432 states and 5675 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:27,369 INFO L93 Difference]: Finished difference Result 2983 states and 11003 transitions. [2022-03-01 17:08:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:27,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:27,376 INFO L225 Difference]: With dead ends: 2983 [2022-03-01 17:08:27,376 INFO L226 Difference]: Without dead ends: 2729 [2022-03-01 17:08:27,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:27,377 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:27,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-03-01 17:08:27,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1400. [2022-03-01 17:08:27,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.964974982130093) internal successors, (5547), 1399 states have internal predecessors, (5547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5547 transitions. [2022-03-01 17:08:27,405 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5547 transitions. Word has length 25 [2022-03-01 17:08:27,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:27,406 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5547 transitions. [2022-03-01 17:08:27,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5547 transitions. [2022-03-01 17:08:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:27,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:27,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:27,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-01 17:08:27,408 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:27,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:27,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1716595509, now seen corresponding path program 291 times [2022-03-01 17:08:27,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:27,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435871251] [2022-03-01 17:08:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:27,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:27,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:27,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:27,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435871251] [2022-03-01 17:08:27,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435871251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:27,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:27,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:27,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028328136] [2022-03-01 17:08:27,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:27,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:27,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:27,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:27,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:27,498 INFO L87 Difference]: Start difference. First operand 1400 states and 5547 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:27,579 INFO L93 Difference]: Finished difference Result 2865 states and 10585 transitions. [2022-03-01 17:08:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:27,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:27,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:27,585 INFO L225 Difference]: With dead ends: 2865 [2022-03-01 17:08:27,585 INFO L226 Difference]: Without dead ends: 2706 [2022-03-01 17:08:27,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:27,585 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:27,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 148 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:27,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2022-03-01 17:08:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 1416. [2022-03-01 17:08:27,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.954063604240283) internal successors, (5595), 1415 states have internal predecessors, (5595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5595 transitions. [2022-03-01 17:08:27,611 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5595 transitions. Word has length 25 [2022-03-01 17:08:27,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:27,611 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5595 transitions. [2022-03-01 17:08:27,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5595 transitions. [2022-03-01 17:08:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:27,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:27,614 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] [2022-03-01 17:08:27,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-01 17:08:27,614 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:27,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:27,614 INFO L85 PathProgramCache]: Analyzing trace with hash -897875147, now seen corresponding path program 292 times [2022-03-01 17:08:27,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:27,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621166020] [2022-03-01 17:08:27,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:27,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:27,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:27,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621166020] [2022-03-01 17:08:27,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621166020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:27,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:27,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:27,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2802980] [2022-03-01 17:08:27,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:27,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:27,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:27,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:27,738 INFO L87 Difference]: Start difference. First operand 1416 states and 5595 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:27,866 INFO L93 Difference]: Finished difference Result 2889 states and 10661 transitions. [2022-03-01 17:08:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:27,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:27,873 INFO L225 Difference]: With dead ends: 2889 [2022-03-01 17:08:27,873 INFO L226 Difference]: Without dead ends: 2690 [2022-03-01 17:08:27,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:27,873 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 95 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 185 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 [2022-03-01 17:08:27,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 185 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:27,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2022-03-01 17:08:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 1400. [2022-03-01 17:08:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.9592566118656185) internal successors, (5539), 1399 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5539 transitions. [2022-03-01 17:08:27,902 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5539 transitions. Word has length 25 [2022-03-01 17:08:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:27,903 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5539 transitions. [2022-03-01 17:08:27,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5539 transitions. [2022-03-01 17:08:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:27,905 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:27,905 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:27,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-01 17:08:27,905 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:27,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:27,905 INFO L85 PathProgramCache]: Analyzing trace with hash 790371125, now seen corresponding path program 293 times [2022-03-01 17:08:27,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:27,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096399533] [2022-03-01 17:08:27,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:27,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:27,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:27,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096399533] [2022-03-01 17:08:27,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096399533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:27,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:27,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:27,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485090612] [2022-03-01 17:08:27,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:27,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:27,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:27,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:27,987 INFO L87 Difference]: Start difference. First operand 1400 states and 5539 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:28,068 INFO L93 Difference]: Finished difference Result 2980 states and 11008 transitions. [2022-03-01 17:08:28,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:28,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:28,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:28,074 INFO L225 Difference]: With dead ends: 2980 [2022-03-01 17:08:28,074 INFO L226 Difference]: Without dead ends: 2797 [2022-03-01 17:08:28,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:28,074 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:28,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 160 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:28,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2022-03-01 17:08:28,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1444. [2022-03-01 17:08:28,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.943866943866944) internal successors, (5691), 1443 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5691 transitions. [2022-03-01 17:08:28,102 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5691 transitions. Word has length 25 [2022-03-01 17:08:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:28,102 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5691 transitions. [2022-03-01 17:08:28,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5691 transitions. [2022-03-01 17:08:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:28,104 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:28,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:28,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-01 17:08:28,104 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:28,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash -213960813, now seen corresponding path program 294 times [2022-03-01 17:08:28,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:28,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190331041] [2022-03-01 17:08:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:28,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:28,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:28,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190331041] [2022-03-01 17:08:28,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190331041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:28,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:28,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:28,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190198076] [2022-03-01 17:08:28,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:28,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:28,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:28,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:28,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:28,186 INFO L87 Difference]: Start difference. First operand 1444 states and 5691 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:28,287 INFO L93 Difference]: Finished difference Result 3019 states and 11111 transitions. [2022-03-01 17:08:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:28,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:28,293 INFO L225 Difference]: With dead ends: 3019 [2022-03-01 17:08:28,293 INFO L226 Difference]: Without dead ends: 2737 [2022-03-01 17:08:28,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:28,293 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:28,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2022-03-01 17:08:28,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1384. [2022-03-01 17:08:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 3.9645697758496024) internal successors, (5483), 1383 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5483 transitions. [2022-03-01 17:08:28,319 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5483 transitions. Word has length 25 [2022-03-01 17:08:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:28,319 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5483 transitions. [2022-03-01 17:08:28,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5483 transitions. [2022-03-01 17:08:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:28,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:28,321 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] [2022-03-01 17:08:28,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-01 17:08:28,321 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:28,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:28,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1392407413, now seen corresponding path program 295 times [2022-03-01 17:08:28,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:28,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407935977] [2022-03-01 17:08:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:28,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:28,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:28,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:28,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407935977] [2022-03-01 17:08:28,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407935977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:28,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:28,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:28,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593031131] [2022-03-01 17:08:28,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:28,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:28,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:28,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:28,400 INFO L87 Difference]: Start difference. First operand 1384 states and 5483 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:28,501 INFO L93 Difference]: Finished difference Result 2860 states and 10544 transitions. [2022-03-01 17:08:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:28,501 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:28,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:28,507 INFO L225 Difference]: With dead ends: 2860 [2022-03-01 17:08:28,508 INFO L226 Difference]: Without dead ends: 2701 [2022-03-01 17:08:28,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:28,508 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 101 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:28,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 160 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:28,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-03-01 17:08:28,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 1432. [2022-03-01 17:08:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.960167714884696) internal successors, (5667), 1431 states have internal predecessors, (5667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5667 transitions. [2022-03-01 17:08:28,535 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5667 transitions. Word has length 25 [2022-03-01 17:08:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:28,535 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5667 transitions. [2022-03-01 17:08:28,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5667 transitions. [2022-03-01 17:08:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:28,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:28,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:28,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-01 17:08:28,538 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:28,538 INFO L85 PathProgramCache]: Analyzing trace with hash 384109429, now seen corresponding path program 296 times [2022-03-01 17:08:28,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:28,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765490034] [2022-03-01 17:08:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:28,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:28,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:28,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765490034] [2022-03-01 17:08:28,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765490034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:28,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:28,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:28,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958568189] [2022-03-01 17:08:28,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:28,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:28,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:28,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:28,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:28,655 INFO L87 Difference]: Start difference. First operand 1432 states and 5667 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:28,787 INFO L93 Difference]: Finished difference Result 2923 states and 10751 transitions. [2022-03-01 17:08:28,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:28,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:28,794 INFO L225 Difference]: With dead ends: 2923 [2022-03-01 17:08:28,795 INFO L226 Difference]: Without dead ends: 2669 [2022-03-01 17:08:28,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:28,795 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:28,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 165 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:28,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-03-01 17:08:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1400. [2022-03-01 17:08:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.9592566118656185) internal successors, (5539), 1399 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5539 transitions. [2022-03-01 17:08:28,825 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5539 transitions. Word has length 25 [2022-03-01 17:08:28,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:28,825 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5539 transitions. [2022-03-01 17:08:28,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5539 transitions. [2022-03-01 17:08:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:28,827 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:28,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:28,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-01 17:08:28,827 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:28,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:28,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1852050763, now seen corresponding path program 297 times [2022-03-01 17:08:28,828 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:28,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194399203] [2022-03-01 17:08:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:28,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:28,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:28,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194399203] [2022-03-01 17:08:28,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194399203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:28,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:28,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:28,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588735740] [2022-03-01 17:08:28,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:28,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:28,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:28,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:28,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:28,907 INFO L87 Difference]: Start difference. First operand 1400 states and 5539 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:28,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:28,990 INFO L93 Difference]: Finished difference Result 2765 states and 10193 transitions. [2022-03-01 17:08:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:28,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:28,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:28,996 INFO L225 Difference]: With dead ends: 2765 [2022-03-01 17:08:28,996 INFO L226 Difference]: Without dead ends: 2606 [2022-03-01 17:08:28,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:28,997 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:28,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 172 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-03-01 17:08:29,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 1416. [2022-03-01 17:08:29,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.948409893992933) internal successors, (5587), 1415 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5587 transitions. [2022-03-01 17:08:29,022 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5587 transitions. Word has length 25 [2022-03-01 17:08:29,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:29,022 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5587 transitions. [2022-03-01 17:08:29,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5587 transitions. [2022-03-01 17:08:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:29,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:29,024 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] [2022-03-01 17:08:29,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-01 17:08:29,024 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:29,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash 500644533, now seen corresponding path program 298 times [2022-03-01 17:08:29,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:29,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237062041] [2022-03-01 17:08:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:29,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:29,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:29,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237062041] [2022-03-01 17:08:29,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237062041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:29,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:29,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:29,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768700801] [2022-03-01 17:08:29,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:29,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:29,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:29,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:29,103 INFO L87 Difference]: Start difference. First operand 1416 states and 5587 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:29,194 INFO L93 Difference]: Finished difference Result 2653 states and 9856 transitions. [2022-03-01 17:08:29,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:29,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:29,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:29,199 INFO L225 Difference]: With dead ends: 2653 [2022-03-01 17:08:29,199 INFO L226 Difference]: Without dead ends: 2462 [2022-03-01 17:08:29,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:29,199 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:29,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 160 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:29,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2462 states. [2022-03-01 17:08:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2462 to 1400. [2022-03-01 17:08:29,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1399 states have (on average 3.9535382416011435) internal successors, (5531), 1399 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 5531 transitions. [2022-03-01 17:08:29,225 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 5531 transitions. Word has length 25 [2022-03-01 17:08:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:29,225 INFO L470 AbstractCegarLoop]: Abstraction has 1400 states and 5531 transitions. [2022-03-01 17:08:29,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 5531 transitions. [2022-03-01 17:08:29,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:29,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:29,227 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] [2022-03-01 17:08:29,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-01 17:08:29,227 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2106076491, now seen corresponding path program 299 times [2022-03-01 17:08:29,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:29,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145123378] [2022-03-01 17:08:29,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:29,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:29,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:29,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145123378] [2022-03-01 17:08:29,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145123378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:29,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:29,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:29,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116541450] [2022-03-01 17:08:29,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:29,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:29,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:29,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:29,342 INFO L87 Difference]: Start difference. First operand 1400 states and 5531 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:29,424 INFO L93 Difference]: Finished difference Result 2900 states and 10684 transitions. [2022-03-01 17:08:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:29,431 INFO L225 Difference]: With dead ends: 2900 [2022-03-01 17:08:29,431 INFO L226 Difference]: Without dead ends: 2725 [2022-03-01 17:08:29,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:29,431 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:29,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:29,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2022-03-01 17:08:29,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1440. [2022-03-01 17:08:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 1439 states have (on average 3.9409312022237666) internal successors, (5671), 1439 states have internal predecessors, (5671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 5671 transitions. [2022-03-01 17:08:29,460 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 5671 transitions. Word has length 25 [2022-03-01 17:08:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:29,460 INFO L470 AbstractCegarLoop]: Abstraction has 1440 states and 5671 transitions. [2022-03-01 17:08:29,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 5671 transitions. [2022-03-01 17:08:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:29,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:29,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:29,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-01 17:08:29,462 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash 533366419, now seen corresponding path program 300 times [2022-03-01 17:08:29,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:29,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272720039] [2022-03-01 17:08:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:29,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:29,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:29,571 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272720039] [2022-03-01 17:08:29,571 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272720039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:29,571 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:29,571 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:29,571 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106408608] [2022-03-01 17:08:29,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:29,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:29,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:29,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:29,572 INFO L87 Difference]: Start difference. First operand 1440 states and 5671 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:29,650 INFO L93 Difference]: Finished difference Result 2852 states and 10484 transitions. [2022-03-01 17:08:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:29,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:29,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:29,657 INFO L225 Difference]: With dead ends: 2852 [2022-03-01 17:08:29,657 INFO L226 Difference]: Without dead ends: 2574 [2022-03-01 17:08:29,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:29,657 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:29,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 142 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:29,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-03-01 17:08:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1384. [2022-03-01 17:08:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 3.9587852494577005) internal successors, (5475), 1383 states have internal predecessors, (5475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5475 transitions. [2022-03-01 17:08:29,686 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5475 transitions. Word has length 25 [2022-03-01 17:08:29,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:29,686 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5475 transitions. [2022-03-01 17:08:29,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5475 transitions. [2022-03-01 17:08:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:29,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:29,688 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] [2022-03-01 17:08:29,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-01 17:08:29,688 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:29,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:29,689 INFO L85 PathProgramCache]: Analyzing trace with hash 967036375, now seen corresponding path program 301 times [2022-03-01 17:08:29,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:29,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632429741] [2022-03-01 17:08:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:29,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:29,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:29,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632429741] [2022-03-01 17:08:29,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632429741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:29,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:29,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:29,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648987251] [2022-03-01 17:08:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:29,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:29,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:29,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:29,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:29,773 INFO L87 Difference]: Start difference. First operand 1384 states and 5475 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:29,846 INFO L93 Difference]: Finished difference Result 2710 states and 9998 transitions. [2022-03-01 17:08:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:29,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:29,853 INFO L225 Difference]: With dead ends: 2710 [2022-03-01 17:08:29,853 INFO L226 Difference]: Without dead ends: 2551 [2022-03-01 17:08:29,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:29,853 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 104 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:29,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 153 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:29,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2551 states. [2022-03-01 17:08:29,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2551 to 1408. [2022-03-01 17:08:29,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 3.9509594882729213) internal successors, (5559), 1407 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5559 transitions. [2022-03-01 17:08:29,881 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5559 transitions. Word has length 25 [2022-03-01 17:08:29,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:29,881 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5559 transitions. [2022-03-01 17:08:29,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:29,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5559 transitions. [2022-03-01 17:08:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:29,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:29,883 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] [2022-03-01 17:08:29,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-01 17:08:29,883 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1647434281, now seen corresponding path program 302 times [2022-03-01 17:08:29,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:29,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525332815] [2022-03-01 17:08:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:29,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:29,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:29,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:29,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525332815] [2022-03-01 17:08:29,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525332815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:29,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:29,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:29,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176946708] [2022-03-01 17:08:29,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:29,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:29,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:29,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:29,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:29,963 INFO L87 Difference]: Start difference. First operand 1408 states and 5559 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:30,044 INFO L93 Difference]: Finished difference Result 2734 states and 10074 transitions. [2022-03-01 17:08:30,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:30,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:30,070 INFO L225 Difference]: With dead ends: 2734 [2022-03-01 17:08:30,071 INFO L226 Difference]: Without dead ends: 2535 [2022-03-01 17:08:30,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:30,071 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:30,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:30,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2022-03-01 17:08:30,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 1392. [2022-03-01 17:08:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9561466570812365) internal successors, (5503), 1391 states have internal predecessors, (5503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5503 transitions. [2022-03-01 17:08:30,096 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5503 transitions. Word has length 25 [2022-03-01 17:08:30,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:30,096 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5503 transitions. [2022-03-01 17:08:30,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5503 transitions. [2022-03-01 17:08:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:30,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:30,098 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] [2022-03-01 17:08:30,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-01 17:08:30,098 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:30,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash 120239413, now seen corresponding path program 303 times [2022-03-01 17:08:30,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:30,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881311855] [2022-03-01 17:08:30,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:30,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:30,177 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:30,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881311855] [2022-03-01 17:08:30,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881311855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:30,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:30,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:30,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526622996] [2022-03-01 17:08:30,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:30,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:30,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:30,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:30,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:30,178 INFO L87 Difference]: Start difference. First operand 1392 states and 5503 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:30,254 INFO L93 Difference]: Finished difference Result 2654 states and 9786 transitions. [2022-03-01 17:08:30,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:30,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:30,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:30,260 INFO L225 Difference]: With dead ends: 2654 [2022-03-01 17:08:30,260 INFO L226 Difference]: Without dead ends: 2495 [2022-03-01 17:08:30,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:30,261 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:30,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:30,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2022-03-01 17:08:30,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1408. [2022-03-01 17:08:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 3.945273631840796) internal successors, (5551), 1407 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5551 transitions. [2022-03-01 17:08:30,287 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5551 transitions. Word has length 25 [2022-03-01 17:08:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:30,288 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5551 transitions. [2022-03-01 17:08:30,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5551 transitions. [2022-03-01 17:08:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:30,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:30,290 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] [2022-03-01 17:08:30,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-01 17:08:30,290 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:30,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:30,290 INFO L85 PathProgramCache]: Analyzing trace with hash 762578391, now seen corresponding path program 304 times [2022-03-01 17:08:30,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:30,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466679958] [2022-03-01 17:08:30,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:30,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:30,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:30,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466679958] [2022-03-01 17:08:30,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466679958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:30,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:30,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:30,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580043733] [2022-03-01 17:08:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:30,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:30,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:30,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:30,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:30,369 INFO L87 Difference]: Start difference. First operand 1408 states and 5551 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:30,443 INFO L93 Difference]: Finished difference Result 2542 states and 9449 transitions. [2022-03-01 17:08:30,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:30,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:30,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:30,450 INFO L225 Difference]: With dead ends: 2542 [2022-03-01 17:08:30,450 INFO L226 Difference]: Without dead ends: 2351 [2022-03-01 17:08:30,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:30,450 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 105 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:30,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 135 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2022-03-01 17:08:30,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1392. [2022-03-01 17:08:30,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9503953989935296) internal successors, (5495), 1391 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5495 transitions. [2022-03-01 17:08:30,477 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5495 transitions. Word has length 25 [2022-03-01 17:08:30,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:30,477 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5495 transitions. [2022-03-01 17:08:30,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5495 transitions. [2022-03-01 17:08:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:30,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:30,479 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] [2022-03-01 17:08:30,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-01 17:08:30,479 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:30,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash 139947479, now seen corresponding path program 305 times [2022-03-01 17:08:30,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:30,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105971550] [2022-03-01 17:08:30,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:30,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:30,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:30,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105971550] [2022-03-01 17:08:30,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105971550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:30,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:30,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:30,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708825526] [2022-03-01 17:08:30,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:30,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:30,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:30,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:30,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:30,558 INFO L87 Difference]: Start difference. First operand 1392 states and 5495 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:30,642 INFO L93 Difference]: Finished difference Result 2558 states and 9521 transitions. [2022-03-01 17:08:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:30,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:30,647 INFO L225 Difference]: With dead ends: 2558 [2022-03-01 17:08:30,647 INFO L226 Difference]: Without dead ends: 2375 [2022-03-01 17:08:30,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:30,647 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:30,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 155 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:30,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-03-01 17:08:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1416. [2022-03-01 17:08:30,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.9371024734982334) internal successors, (5571), 1415 states have internal predecessors, (5571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5571 transitions. [2022-03-01 17:08:30,670 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5571 transitions. Word has length 25 [2022-03-01 17:08:30,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:30,671 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5571 transitions. [2022-03-01 17:08:30,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5571 transitions. [2022-03-01 17:08:30,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:30,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:30,673 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] [2022-03-01 17:08:30,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-01 17:08:30,673 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:30,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:30,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1903389515, now seen corresponding path program 306 times [2022-03-01 17:08:30,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:30,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590759776] [2022-03-01 17:08:30,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:30,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:30,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590759776] [2022-03-01 17:08:30,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590759776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:30,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:30,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:30,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32773178] [2022-03-01 17:08:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:30,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:30,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:30,752 INFO L87 Difference]: Start difference. First operand 1416 states and 5571 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:30,829 INFO L93 Difference]: Finished difference Result 2374 states and 8908 transitions. [2022-03-01 17:08:30,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:30,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:30,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:30,833 INFO L225 Difference]: With dead ends: 2374 [2022-03-01 17:08:30,833 INFO L226 Difference]: Without dead ends: 2167 [2022-03-01 17:08:30,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:30,834 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 87 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:30,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:30,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2022-03-01 17:08:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1384. [2022-03-01 17:08:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 3.95589298626175) internal successors, (5471), 1383 states have internal predecessors, (5471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 5471 transitions. [2022-03-01 17:08:30,856 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 5471 transitions. Word has length 25 [2022-03-01 17:08:30,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:30,856 INFO L470 AbstractCegarLoop]: Abstraction has 1384 states and 5471 transitions. [2022-03-01 17:08:30,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:30,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 5471 transitions. [2022-03-01 17:08:30,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:30,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:30,858 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] [2022-03-01 17:08:30,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-01 17:08:30,858 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:30,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:30,858 INFO L85 PathProgramCache]: Analyzing trace with hash -953023017, now seen corresponding path program 307 times [2022-03-01 17:08:30,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:30,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141373835] [2022-03-01 17:08:30,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:30,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:30,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:30,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141373835] [2022-03-01 17:08:30,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141373835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:30,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:30,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:30,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91289644] [2022-03-01 17:08:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:30,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:30,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:30,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:30,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:30,945 INFO L87 Difference]: Start difference. First operand 1384 states and 5471 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:31,029 INFO L93 Difference]: Finished difference Result 2933 states and 10857 transitions. [2022-03-01 17:08:31,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:31,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:31,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:31,035 INFO L225 Difference]: With dead ends: 2933 [2022-03-01 17:08:31,035 INFO L226 Difference]: Without dead ends: 2750 [2022-03-01 17:08:31,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:31,035 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:31,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:31,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-03-01 17:08:31,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 1428. [2022-03-01 17:08:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 3.9516468114926417) internal successors, (5639), 1427 states have internal predecessors, (5639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 5639 transitions. [2022-03-01 17:08:31,062 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 5639 transitions. Word has length 25 [2022-03-01 17:08:31,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:31,062 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 5639 transitions. [2022-03-01 17:08:31,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 5639 transitions. [2022-03-01 17:08:31,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:31,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:31,064 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] [2022-03-01 17:08:31,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-01 17:08:31,065 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:31,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:31,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1298607285, now seen corresponding path program 308 times [2022-03-01 17:08:31,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:31,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492082881] [2022-03-01 17:08:31,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:31,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:31,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:31,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492082881] [2022-03-01 17:08:31,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492082881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:31,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:31,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:31,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603366975] [2022-03-01 17:08:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:31,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:31,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:31,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:31,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:31,156 INFO L87 Difference]: Start difference. First operand 1428 states and 5639 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:31,258 INFO L93 Difference]: Finished difference Result 2925 states and 10805 transitions. [2022-03-01 17:08:31,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:31,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:31,264 INFO L225 Difference]: With dead ends: 2925 [2022-03-01 17:08:31,265 INFO L226 Difference]: Without dead ends: 2726 [2022-03-01 17:08:31,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:31,265 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:31,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 136 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:31,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2022-03-01 17:08:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1404. [2022-03-01 17:08:31,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9565217391304346) internal successors, (5551), 1403 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5551 transitions. [2022-03-01 17:08:31,293 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5551 transitions. Word has length 25 [2022-03-01 17:08:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:31,293 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5551 transitions. [2022-03-01 17:08:31,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5551 transitions. [2022-03-01 17:08:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:31,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:31,295 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] [2022-03-01 17:08:31,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-01 17:08:31,295 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:31,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:31,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1520908853, now seen corresponding path program 309 times [2022-03-01 17:08:31,296 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:31,296 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777286345] [2022-03-01 17:08:31,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:31,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:31,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:31,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:31,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777286345] [2022-03-01 17:08:31,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777286345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:31,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:31,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:31,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334105144] [2022-03-01 17:08:31,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:31,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:31,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:31,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:31,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:31,378 INFO L87 Difference]: Start difference. First operand 1404 states and 5551 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:31,463 INFO L93 Difference]: Finished difference Result 2861 states and 10569 transitions. [2022-03-01 17:08:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:31,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:31,470 INFO L225 Difference]: With dead ends: 2861 [2022-03-01 17:08:31,470 INFO L226 Difference]: Without dead ends: 2678 [2022-03-01 17:08:31,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:31,470 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:31,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2022-03-01 17:08:31,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 1448. [2022-03-01 17:08:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9412577747062887) internal successors, (5703), 1447 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5703 transitions. [2022-03-01 17:08:31,521 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5703 transitions. Word has length 25 [2022-03-01 17:08:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:31,521 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5703 transitions. [2022-03-01 17:08:31,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5703 transitions. [2022-03-01 17:08:31,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:31,524 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:31,524 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] [2022-03-01 17:08:31,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-01 17:08:31,524 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:31,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2056490443, now seen corresponding path program 310 times [2022-03-01 17:08:31,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:31,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775865032] [2022-03-01 17:08:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:31,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:31,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:31,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775865032] [2022-03-01 17:08:31,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775865032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:31,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:31,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:31,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994321747] [2022-03-01 17:08:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:31,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:31,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:31,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:31,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:31,606 INFO L87 Difference]: Start difference. First operand 1448 states and 5703 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:31,699 INFO L93 Difference]: Finished difference Result 2900 states and 10672 transitions. [2022-03-01 17:08:31,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:31,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:31,705 INFO L225 Difference]: With dead ends: 2900 [2022-03-01 17:08:31,705 INFO L226 Difference]: Without dead ends: 2634 [2022-03-01 17:08:31,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:31,706 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:31,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 139 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:31,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2022-03-01 17:08:31,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 1404. [2022-03-01 17:08:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9422665716322167) internal successors, (5531), 1403 states have internal predecessors, (5531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5531 transitions. [2022-03-01 17:08:31,732 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5531 transitions. Word has length 25 [2022-03-01 17:08:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:31,732 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5531 transitions. [2022-03-01 17:08:31,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5531 transitions. [2022-03-01 17:08:31,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:31,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:31,735 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] [2022-03-01 17:08:31,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-01 17:08:31,735 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:31,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:31,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1791710829, now seen corresponding path program 311 times [2022-03-01 17:08:31,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:31,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356167989] [2022-03-01 17:08:31,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:31,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:31,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:31,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356167989] [2022-03-01 17:08:31,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356167989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:31,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:31,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:31,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475617207] [2022-03-01 17:08:31,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:31,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:31,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:31,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:31,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:31,868 INFO L87 Difference]: Start difference. First operand 1404 states and 5531 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:32,099 INFO L93 Difference]: Finished difference Result 2801 states and 10313 transitions. [2022-03-01 17:08:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:32,105 INFO L225 Difference]: With dead ends: 2801 [2022-03-01 17:08:32,106 INFO L226 Difference]: Without dead ends: 2626 [2022-03-01 17:08:32,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:32,106 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 107 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:32,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 17:08:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2022-03-01 17:08:32,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1444. [2022-03-01 17:08:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 3.93000693000693) internal successors, (5671), 1443 states have internal predecessors, (5671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 5671 transitions. [2022-03-01 17:08:32,134 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 5671 transitions. Word has length 25 [2022-03-01 17:08:32,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:32,134 INFO L470 AbstractCegarLoop]: Abstraction has 1444 states and 5671 transitions. [2022-03-01 17:08:32,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 5671 transitions. [2022-03-01 17:08:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:32,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:32,136 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] [2022-03-01 17:08:32,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-01 17:08:32,137 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1573359243, now seen corresponding path program 312 times [2022-03-01 17:08:32,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:32,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835405763] [2022-03-01 17:08:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:32,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:32,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835405763] [2022-03-01 17:08:32,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835405763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:32,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:32,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:32,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821238635] [2022-03-01 17:08:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:32,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:32,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:32,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:32,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:32,261 INFO L87 Difference]: Start difference. First operand 1444 states and 5671 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:32,357 INFO L93 Difference]: Finished difference Result 2753 states and 10113 transitions. [2022-03-01 17:08:32,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:32,357 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:32,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:32,363 INFO L225 Difference]: With dead ends: 2753 [2022-03-01 17:08:32,363 INFO L226 Difference]: Without dead ends: 2463 [2022-03-01 17:08:32,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:32,363 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 109 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:32,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 129 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:32,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2463 states. [2022-03-01 17:08:32,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2463 to 1376. [2022-03-01 17:08:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 3.9614545454545453) internal successors, (5447), 1375 states have internal predecessors, (5447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5447 transitions. [2022-03-01 17:08:32,390 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5447 transitions. Word has length 25 [2022-03-01 17:08:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:32,390 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5447 transitions. [2022-03-01 17:08:32,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5447 transitions. [2022-03-01 17:08:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:32,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:32,392 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] [2022-03-01 17:08:32,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-01 17:08:32,392 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:32,393 INFO L85 PathProgramCache]: Analyzing trace with hash -895981905, now seen corresponding path program 313 times [2022-03-01 17:08:32,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:32,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097626028] [2022-03-01 17:08:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:32,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:32,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:32,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097626028] [2022-03-01 17:08:32,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097626028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:32,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:32,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:32,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913910757] [2022-03-01 17:08:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:32,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:32,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:32,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:32,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:32,513 INFO L87 Difference]: Start difference. First operand 1376 states and 5447 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:32,617 INFO L93 Difference]: Finished difference Result 2713 states and 10002 transitions. [2022-03-01 17:08:32,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:32,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:32,623 INFO L225 Difference]: With dead ends: 2713 [2022-03-01 17:08:32,623 INFO L226 Difference]: Without dead ends: 2554 [2022-03-01 17:08:32,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:32,624 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 98 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:32,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 169 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-03-01 17:08:32,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1404. [2022-03-01 17:08:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9565217391304346) internal successors, (5551), 1403 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5551 transitions. [2022-03-01 17:08:32,650 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5551 transitions. Word has length 25 [2022-03-01 17:08:32,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:32,651 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5551 transitions. [2022-03-01 17:08:32,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5551 transitions. [2022-03-01 17:08:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:32,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:32,653 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] [2022-03-01 17:08:32,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-01 17:08:32,653 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:32,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:32,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1809050641, now seen corresponding path program 314 times [2022-03-01 17:08:32,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:32,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209256129] [2022-03-01 17:08:32,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:32,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:32,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:32,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209256129] [2022-03-01 17:08:32,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209256129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:32,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:32,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:32,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762390657] [2022-03-01 17:08:32,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:32,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:32,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:32,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:32,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:32,769 INFO L87 Difference]: Start difference. First operand 1404 states and 5551 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:32,882 INFO L93 Difference]: Finished difference Result 2743 states and 10095 transitions. [2022-03-01 17:08:32,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:32,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:32,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:32,888 INFO L225 Difference]: With dead ends: 2743 [2022-03-01 17:08:32,888 INFO L226 Difference]: Without dead ends: 2538 [2022-03-01 17:08:32,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:32,888 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:32,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 157 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-03-01 17:08:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1388. [2022-03-01 17:08:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9617880317231435) internal successors, (5495), 1387 states have internal predecessors, (5495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5495 transitions. [2022-03-01 17:08:32,916 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5495 transitions. Word has length 25 [2022-03-01 17:08:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:32,916 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5495 transitions. [2022-03-01 17:08:32,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5495 transitions. [2022-03-01 17:08:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:32,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:32,918 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] [2022-03-01 17:08:32,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-01 17:08:32,918 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:32,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1102789871, now seen corresponding path program 315 times [2022-03-01 17:08:32,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:32,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264987356] [2022-03-01 17:08:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:32,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:33,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:33,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264987356] [2022-03-01 17:08:33,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264987356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:33,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:33,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:33,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729118519] [2022-03-01 17:08:33,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:33,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:33,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:33,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:33,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:33,060 INFO L87 Difference]: Start difference. First operand 1388 states and 5495 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:33,164 INFO L93 Difference]: Finished difference Result 2707 states and 9977 transitions. [2022-03-01 17:08:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:33,170 INFO L225 Difference]: With dead ends: 2707 [2022-03-01 17:08:33,170 INFO L226 Difference]: Without dead ends: 2548 [2022-03-01 17:08:33,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:33,170 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 97 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:33,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 171 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:33,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2022-03-01 17:08:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 1404. [2022-03-01 17:08:33,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9508196721311477) internal successors, (5543), 1403 states have internal predecessors, (5543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5543 transitions. [2022-03-01 17:08:33,197 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5543 transitions. Word has length 25 [2022-03-01 17:08:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:33,197 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5543 transitions. [2022-03-01 17:08:33,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5543 transitions. [2022-03-01 17:08:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:33,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:33,199 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] [2022-03-01 17:08:33,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-01 17:08:33,199 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:33,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:33,200 INFO L85 PathProgramCache]: Analyzing trace with hash 577706769, now seen corresponding path program 316 times [2022-03-01 17:08:33,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:33,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664808798] [2022-03-01 17:08:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:33,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:33,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:33,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664808798] [2022-03-01 17:08:33,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664808798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:33,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:33,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:33,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312936033] [2022-03-01 17:08:33,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:33,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:33,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:33,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:33,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:33,278 INFO L87 Difference]: Start difference. First operand 1404 states and 5543 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:33,356 INFO L93 Difference]: Finished difference Result 2731 states and 10053 transitions. [2022-03-01 17:08:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:33,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:33,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:33,361 INFO L225 Difference]: With dead ends: 2731 [2022-03-01 17:08:33,361 INFO L226 Difference]: Without dead ends: 2532 [2022-03-01 17:08:33,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:33,362 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 101 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:33,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 156 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2532 states. [2022-03-01 17:08:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2532 to 1388. [2022-03-01 17:08:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9560201874549388) internal successors, (5487), 1387 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5487 transitions. [2022-03-01 17:08:33,387 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5487 transitions. Word has length 25 [2022-03-01 17:08:33,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:33,388 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5487 transitions. [2022-03-01 17:08:33,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5487 transitions. [2022-03-01 17:08:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:33,390 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:33,390 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] [2022-03-01 17:08:33,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-01 17:08:33,390 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:33,390 INFO L85 PathProgramCache]: Analyzing trace with hash 314372083, now seen corresponding path program 317 times [2022-03-01 17:08:33,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:33,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352057830] [2022-03-01 17:08:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:33,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:33,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:33,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352057830] [2022-03-01 17:08:33,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352057830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:33,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:33,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:33,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520158821] [2022-03-01 17:08:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:33,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:33,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:33,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:33,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:33,471 INFO L87 Difference]: Start difference. First operand 1388 states and 5487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:33,544 INFO L93 Difference]: Finished difference Result 2779 states and 10239 transitions. [2022-03-01 17:08:33,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:33,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:33,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:33,550 INFO L225 Difference]: With dead ends: 2779 [2022-03-01 17:08:33,551 INFO L226 Difference]: Without dead ends: 2590 [2022-03-01 17:08:33,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:33,551 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 115 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:33,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 150 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2590 states. [2022-03-01 17:08:33,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2590 to 1416. [2022-03-01 17:08:33,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.939929328621908) internal successors, (5575), 1415 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5575 transitions. [2022-03-01 17:08:33,579 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5575 transitions. Word has length 25 [2022-03-01 17:08:33,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:33,579 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5575 transitions. [2022-03-01 17:08:33,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5575 transitions. [2022-03-01 17:08:33,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:33,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:33,581 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] [2022-03-01 17:08:33,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-01 17:08:33,582 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:33,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:33,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1077772463, now seen corresponding path program 318 times [2022-03-01 17:08:33,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:33,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763309736] [2022-03-01 17:08:33,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:33,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:33,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:33,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763309736] [2022-03-01 17:08:33,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763309736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:33,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:33,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:33,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411871963] [2022-03-01 17:08:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:33,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:33,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:33,655 INFO L87 Difference]: Start difference. First operand 1416 states and 5575 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:33,730 INFO L93 Difference]: Finished difference Result 2773 states and 10194 transitions. [2022-03-01 17:08:33,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:33,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:33,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:33,736 INFO L225 Difference]: With dead ends: 2773 [2022-03-01 17:08:33,737 INFO L226 Difference]: Without dead ends: 2554 [2022-03-01 17:08:33,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:33,737 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:33,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 139 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:33,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2554 states. [2022-03-01 17:08:33,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2554 to 1380. [2022-03-01 17:08:33,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 3.9615663524292968) internal successors, (5463), 1379 states have internal predecessors, (5463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5463 transitions. [2022-03-01 17:08:33,764 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5463 transitions. Word has length 25 [2022-03-01 17:08:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:33,764 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5463 transitions. [2022-03-01 17:08:33,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5463 transitions. [2022-03-01 17:08:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:33,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:33,766 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] [2022-03-01 17:08:33,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-01 17:08:33,768 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:33,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:33,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1376883951, now seen corresponding path program 319 times [2022-03-01 17:08:33,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:33,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250662806] [2022-03-01 17:08:33,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:33,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:33,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:33,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250662806] [2022-03-01 17:08:33,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250662806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:33,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:33,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:33,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597112251] [2022-03-01 17:08:33,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:33,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:33,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:33,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:33,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:33,844 INFO L87 Difference]: Start difference. First operand 1380 states and 5463 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:33,909 INFO L93 Difference]: Finished difference Result 2677 states and 9854 transitions. [2022-03-01 17:08:33,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:33,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:33,915 INFO L225 Difference]: With dead ends: 2677 [2022-03-01 17:08:33,915 INFO L226 Difference]: Without dead ends: 2518 [2022-03-01 17:08:33,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:33,915 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:33,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 138 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:33,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2022-03-01 17:08:33,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1404. [2022-03-01 17:08:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9536707056307914) internal successors, (5547), 1403 states have internal predecessors, (5547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5547 transitions. [2022-03-01 17:08:33,945 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5547 transitions. Word has length 25 [2022-03-01 17:08:33,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:33,945 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5547 transitions. [2022-03-01 17:08:33,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:33,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5547 transitions. [2022-03-01 17:08:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:33,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:33,947 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] [2022-03-01 17:08:33,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-01 17:08:33,947 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:33,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1328148595, now seen corresponding path program 320 times [2022-03-01 17:08:33,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:33,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362246908] [2022-03-01 17:08:33,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:33,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:34,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:34,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362246908] [2022-03-01 17:08:34,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362246908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:34,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:34,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:34,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180865830] [2022-03-01 17:08:34,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:34,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:34,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:34,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:34,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:34,024 INFO L87 Difference]: Start difference. First operand 1404 states and 5547 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:34,105 INFO L93 Difference]: Finished difference Result 2707 states and 9947 transitions. [2022-03-01 17:08:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:34,110 INFO L225 Difference]: With dead ends: 2707 [2022-03-01 17:08:34,110 INFO L226 Difference]: Without dead ends: 2502 [2022-03-01 17:08:34,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:34,112 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:34,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 158 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2022-03-01 17:08:34,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1388. [2022-03-01 17:08:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.958904109589041) internal successors, (5491), 1387 states have internal predecessors, (5491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5491 transitions. [2022-03-01 17:08:34,138 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5491 transitions. Word has length 25 [2022-03-01 17:08:34,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:34,138 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5491 transitions. [2022-03-01 17:08:34,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5491 transitions. [2022-03-01 17:08:34,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:34,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:34,140 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] [2022-03-01 17:08:34,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-01 17:08:34,140 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:34,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:34,140 INFO L85 PathProgramCache]: Analyzing trace with hash -58033519, now seen corresponding path program 321 times [2022-03-01 17:08:34,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:34,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303873493] [2022-03-01 17:08:34,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:34,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:34,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:34,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303873493] [2022-03-01 17:08:34,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303873493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:34,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:34,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:34,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048913455] [2022-03-01 17:08:34,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:34,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:34,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:34,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:34,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:34,220 INFO L87 Difference]: Start difference. First operand 1388 states and 5491 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:34,285 INFO L93 Difference]: Finished difference Result 2631 states and 9689 transitions. [2022-03-01 17:08:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:34,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:34,291 INFO L225 Difference]: With dead ends: 2631 [2022-03-01 17:08:34,291 INFO L226 Difference]: Without dead ends: 2472 [2022-03-01 17:08:34,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:34,291 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:34,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 136 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:34,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-03-01 17:08:34,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 1404. [2022-03-01 17:08:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.947968638631504) internal successors, (5539), 1403 states have internal predecessors, (5539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5539 transitions. [2022-03-01 17:08:34,317 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5539 transitions. Word has length 25 [2022-03-01 17:08:34,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:34,317 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5539 transitions. [2022-03-01 17:08:34,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5539 transitions. [2022-03-01 17:08:34,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:34,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:34,319 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] [2022-03-01 17:08:34,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-01 17:08:34,319 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:34,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:34,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2000305519, now seen corresponding path program 322 times [2022-03-01 17:08:34,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:34,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533721007] [2022-03-01 17:08:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:34,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:34,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:34,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:34,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533721007] [2022-03-01 17:08:34,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533721007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:34,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:34,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:34,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245687021] [2022-03-01 17:08:34,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:34,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:34,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:34,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:34,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:34,395 INFO L87 Difference]: Start difference. First operand 1404 states and 5539 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:34,475 INFO L93 Difference]: Finished difference Result 2519 states and 9352 transitions. [2022-03-01 17:08:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:34,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:34,481 INFO L225 Difference]: With dead ends: 2519 [2022-03-01 17:08:34,481 INFO L226 Difference]: Without dead ends: 2328 [2022-03-01 17:08:34,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:34,481 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 96 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:34,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 159 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2022-03-01 17:08:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 1388. [2022-03-01 17:08:34,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.953136265320836) internal successors, (5483), 1387 states have internal predecessors, (5483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5483 transitions. [2022-03-01 17:08:34,507 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5483 transitions. Word has length 25 [2022-03-01 17:08:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:34,507 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5483 transitions. [2022-03-01 17:08:34,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5483 transitions. [2022-03-01 17:08:34,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:34,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:34,509 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] [2022-03-01 17:08:34,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-01 17:08:34,509 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:34,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:34,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1359128435, now seen corresponding path program 323 times [2022-03-01 17:08:34,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:34,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883994741] [2022-03-01 17:08:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:34,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:34,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:34,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883994741] [2022-03-01 17:08:34,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883994741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:34,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:34,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:34,609 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256840961] [2022-03-01 17:08:34,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:34,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:34,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:34,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:34,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:34,609 INFO L87 Difference]: Start difference. First operand 1388 states and 5483 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:34,690 INFO L93 Difference]: Finished difference Result 2669 states and 9826 transitions. [2022-03-01 17:08:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:34,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:34,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:34,696 INFO L225 Difference]: With dead ends: 2669 [2022-03-01 17:08:34,696 INFO L226 Difference]: Without dead ends: 2480 [2022-03-01 17:08:34,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:34,697 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:34,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 144 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-03-01 17:08:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1412. [2022-03-01 17:08:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9397590361445785) internal successors, (5559), 1411 states have internal predecessors, (5559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5559 transitions. [2022-03-01 17:08:34,723 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5559 transitions. Word has length 25 [2022-03-01 17:08:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:34,723 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5559 transitions. [2022-03-01 17:08:34,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5559 transitions. [2022-03-01 17:08:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:34,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:34,725 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] [2022-03-01 17:08:34,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-01 17:08:34,725 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:34,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash 618176337, now seen corresponding path program 324 times [2022-03-01 17:08:34,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:34,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426385586] [2022-03-01 17:08:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:34,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:34,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426385586] [2022-03-01 17:08:34,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426385586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:34,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:34,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:34,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831145757] [2022-03-01 17:08:34,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:34,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:34,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:34,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:34,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:34,838 INFO L87 Difference]: Start difference. First operand 1412 states and 5559 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:34,928 INFO L93 Difference]: Finished difference Result 2527 states and 9372 transitions. [2022-03-01 17:08:34,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:34,928 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:34,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:34,933 INFO L225 Difference]: With dead ends: 2527 [2022-03-01 17:08:34,933 INFO L226 Difference]: Without dead ends: 2320 [2022-03-01 17:08:34,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:34,934 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:34,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2022-03-01 17:08:34,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 1380. [2022-03-01 17:08:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 3.958665699782451) internal successors, (5459), 1379 states have internal predecessors, (5459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5459 transitions. [2022-03-01 17:08:34,956 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5459 transitions. Word has length 25 [2022-03-01 17:08:34,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:34,956 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5459 transitions. [2022-03-01 17:08:34,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5459 transitions. [2022-03-01 17:08:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:34,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:34,959 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] [2022-03-01 17:08:34,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-01 17:08:34,959 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:34,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1325160051, now seen corresponding path program 325 times [2022-03-01 17:08:34,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:34,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590454047] [2022-03-01 17:08:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:34,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:35,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:35,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:35,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590454047] [2022-03-01 17:08:35,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590454047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:35,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:35,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:35,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878270476] [2022-03-01 17:08:35,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:35,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:35,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:35,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:35,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:35,071 INFO L87 Difference]: Start difference. First operand 1380 states and 5459 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:35,162 INFO L93 Difference]: Finished difference Result 2633 states and 9704 transitions. [2022-03-01 17:08:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:35,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:35,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:35,169 INFO L225 Difference]: With dead ends: 2633 [2022-03-01 17:08:35,169 INFO L226 Difference]: Without dead ends: 2474 [2022-03-01 17:08:35,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:35,169 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 116 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:35,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:35,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-03-01 17:08:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1404. [2022-03-01 17:08:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9508196721311477) internal successors, (5543), 1403 states have internal predecessors, (5543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5543 transitions. [2022-03-01 17:08:35,198 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5543 transitions. Word has length 25 [2022-03-01 17:08:35,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:35,198 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5543 transitions. [2022-03-01 17:08:35,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5543 transitions. [2022-03-01 17:08:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:35,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:35,201 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] [2022-03-01 17:08:35,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-01 17:08:35,201 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:35,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:35,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1289310605, now seen corresponding path program 326 times [2022-03-01 17:08:35,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:35,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083187262] [2022-03-01 17:08:35,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:35,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:35,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:35,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083187262] [2022-03-01 17:08:35,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083187262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:35,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:35,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:35,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645308727] [2022-03-01 17:08:35,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:35,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:35,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:35,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:35,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:35,314 INFO L87 Difference]: Start difference. First operand 1404 states and 5543 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:35,425 INFO L93 Difference]: Finished difference Result 2657 states and 9780 transitions. [2022-03-01 17:08:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:35,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:35,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:35,431 INFO L225 Difference]: With dead ends: 2657 [2022-03-01 17:08:35,431 INFO L226 Difference]: Without dead ends: 2458 [2022-03-01 17:08:35,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:35,431 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:35,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2022-03-01 17:08:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1388. [2022-03-01 17:08:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.9560201874549388) internal successors, (5487), 1387 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5487 transitions. [2022-03-01 17:08:35,457 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5487 transitions. Word has length 25 [2022-03-01 17:08:35,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:35,457 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5487 transitions. [2022-03-01 17:08:35,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5487 transitions. [2022-03-01 17:08:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:35,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:35,459 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] [2022-03-01 17:08:35,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-01 17:08:35,459 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:35,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:35,459 INFO L85 PathProgramCache]: Analyzing trace with hash 478363089, now seen corresponding path program 327 times [2022-03-01 17:08:35,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:35,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969091079] [2022-03-01 17:08:35,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:35,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:35,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:35,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:35,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969091079] [2022-03-01 17:08:35,555 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969091079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:35,555 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:35,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:35,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061692433] [2022-03-01 17:08:35,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:35,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:35,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:35,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:35,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:35,555 INFO L87 Difference]: Start difference. First operand 1388 states and 5487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:35,666 INFO L93 Difference]: Finished difference Result 2577 states and 9492 transitions. [2022-03-01 17:08:35,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:35,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:35,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:35,672 INFO L225 Difference]: With dead ends: 2577 [2022-03-01 17:08:35,672 INFO L226 Difference]: Without dead ends: 2418 [2022-03-01 17:08:35,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:35,673 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 107 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:35,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 150 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-03-01 17:08:35,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 1404. [2022-03-01 17:08:35,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1403 states have (on average 3.9451176051318604) internal successors, (5535), 1403 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5535 transitions. [2022-03-01 17:08:35,698 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5535 transitions. Word has length 25 [2022-03-01 17:08:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:35,698 INFO L470 AbstractCegarLoop]: Abstraction has 1404 states and 5535 transitions. [2022-03-01 17:08:35,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5535 transitions. [2022-03-01 17:08:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:35,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:35,701 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] [2022-03-01 17:08:35,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-01 17:08:35,701 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:35,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:35,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1120702067, now seen corresponding path program 328 times [2022-03-01 17:08:35,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:35,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865361084] [2022-03-01 17:08:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:35,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:35,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:35,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865361084] [2022-03-01 17:08:35,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865361084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:35,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:35,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:35,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067332527] [2022-03-01 17:08:35,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:35,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:35,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:35,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:35,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:35,795 INFO L87 Difference]: Start difference. First operand 1404 states and 5535 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:35,880 INFO L93 Difference]: Finished difference Result 2465 states and 9155 transitions. [2022-03-01 17:08:35,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:35,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:35,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:35,886 INFO L225 Difference]: With dead ends: 2465 [2022-03-01 17:08:35,886 INFO L226 Difference]: Without dead ends: 2274 [2022-03-01 17:08:35,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:35,887 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 94 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:35,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 157 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-03-01 17:08:35,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1388. [2022-03-01 17:08:35,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1387 states have (on average 3.950252343186734) internal successors, (5479), 1387 states have internal predecessors, (5479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 5479 transitions. [2022-03-01 17:08:35,911 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 5479 transitions. Word has length 25 [2022-03-01 17:08:35,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:35,911 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 5479 transitions. [2022-03-01 17:08:35,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 5479 transitions. [2022-03-01 17:08:35,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:35,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:35,914 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] [2022-03-01 17:08:35,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-01 17:08:35,914 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:35,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:35,914 INFO L85 PathProgramCache]: Analyzing trace with hash 498071155, now seen corresponding path program 329 times [2022-03-01 17:08:35,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:35,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683732511] [2022-03-01 17:08:35,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:35,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:35,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:35,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683732511] [2022-03-01 17:08:35,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683732511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:35,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:35,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:35,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824926951] [2022-03-01 17:08:35,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:35,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:35,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:35,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:35,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:35,995 INFO L87 Difference]: Start difference. First operand 1388 states and 5479 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:36,085 INFO L93 Difference]: Finished difference Result 2481 states and 9227 transitions. [2022-03-01 17:08:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:36,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:36,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:36,091 INFO L225 Difference]: With dead ends: 2481 [2022-03-01 17:08:36,091 INFO L226 Difference]: Without dead ends: 2298 [2022-03-01 17:08:36,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:36,091 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 95 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:36,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 144 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2022-03-01 17:08:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 1412. [2022-03-01 17:08:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.9369241672572644) internal successors, (5555), 1411 states have internal predecessors, (5555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5555 transitions. [2022-03-01 17:08:36,116 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5555 transitions. Word has length 25 [2022-03-01 17:08:36,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:36,116 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5555 transitions. [2022-03-01 17:08:36,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5555 transitions. [2022-03-01 17:08:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:36,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:36,118 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] [2022-03-01 17:08:36,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-01 17:08:36,118 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:36,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:36,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1545265839, now seen corresponding path program 330 times [2022-03-01 17:08:36,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:36,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580929578] [2022-03-01 17:08:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:36,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:36,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:36,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580929578] [2022-03-01 17:08:36,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580929578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:36,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:36,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:36,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103425525] [2022-03-01 17:08:36,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:36,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:36,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:36,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:36,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:36,221 INFO L87 Difference]: Start difference. First operand 1412 states and 5555 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:36,307 INFO L93 Difference]: Finished difference Result 2297 states and 8614 transitions. [2022-03-01 17:08:36,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:36,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:36,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:36,312 INFO L225 Difference]: With dead ends: 2297 [2022-03-01 17:08:36,312 INFO L226 Difference]: Without dead ends: 2090 [2022-03-01 17:08:36,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:36,312 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:36,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 131 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-03-01 17:08:36,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1380. [2022-03-01 17:08:36,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1379 states have (on average 3.9557650471356056) internal successors, (5455), 1379 states have internal predecessors, (5455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5455 transitions. [2022-03-01 17:08:36,336 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5455 transitions. Word has length 25 [2022-03-01 17:08:36,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:36,337 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 5455 transitions. [2022-03-01 17:08:36,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5455 transitions. [2022-03-01 17:08:36,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:36,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:36,339 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] [2022-03-01 17:08:36,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-01 17:08:36,339 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:36,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:36,339 INFO L85 PathProgramCache]: Analyzing trace with hash 2049264341, now seen corresponding path program 331 times [2022-03-01 17:08:36,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:36,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528968978] [2022-03-01 17:08:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:36,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:36,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:36,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528968978] [2022-03-01 17:08:36,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528968978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:36,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:36,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:36,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292654852] [2022-03-01 17:08:36,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:36,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:36,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:36,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:36,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:36,438 INFO L87 Difference]: Start difference. First operand 1380 states and 5455 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:36,534 INFO L93 Difference]: Finished difference Result 2717 states and 10026 transitions. [2022-03-01 17:08:36,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:36,534 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:36,540 INFO L225 Difference]: With dead ends: 2717 [2022-03-01 17:08:36,540 INFO L226 Difference]: Without dead ends: 2528 [2022-03-01 17:08:36,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:36,540 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 106 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:36,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 150 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2022-03-01 17:08:36,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 1420. [2022-03-01 17:08:36,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.945736434108527) internal successors, (5599), 1419 states have internal predecessors, (5599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5599 transitions. [2022-03-01 17:08:36,565 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5599 transitions. Word has length 25 [2022-03-01 17:08:36,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:36,565 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5599 transitions. [2022-03-01 17:08:36,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5599 transitions. [2022-03-01 17:08:36,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:36,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:36,567 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] [2022-03-01 17:08:36,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-01 17:08:36,568 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:36,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:36,568 INFO L85 PathProgramCache]: Analyzing trace with hash 657119795, now seen corresponding path program 332 times [2022-03-01 17:08:36,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:36,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766296353] [2022-03-01 17:08:36,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:36,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:36,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:36,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766296353] [2022-03-01 17:08:36,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766296353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:36,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:36,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:36,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181863327] [2022-03-01 17:08:36,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:36,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:36,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:36,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:36,671 INFO L87 Difference]: Start difference. First operand 1420 states and 5599 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:36,760 INFO L93 Difference]: Finished difference Result 2711 states and 9981 transitions. [2022-03-01 17:08:36,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:36,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:36,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:36,767 INFO L225 Difference]: With dead ends: 2711 [2022-03-01 17:08:36,767 INFO L226 Difference]: Without dead ends: 2500 [2022-03-01 17:08:36,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:36,767 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 112 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:36,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 137 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:36,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2022-03-01 17:08:36,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1392. [2022-03-01 17:08:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.953271028037383) internal successors, (5499), 1391 states have internal predecessors, (5499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5499 transitions. [2022-03-01 17:08:36,794 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5499 transitions. Word has length 25 [2022-03-01 17:08:36,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:36,794 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5499 transitions. [2022-03-01 17:08:36,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:36,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5499 transitions. [2022-03-01 17:08:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:36,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:36,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:36,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-01 17:08:36,796 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:36,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1202467379, now seen corresponding path program 333 times [2022-03-01 17:08:36,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:36,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777372594] [2022-03-01 17:08:36,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:36,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:36,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:36,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777372594] [2022-03-01 17:08:36,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777372594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:36,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:36,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:36,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446773279] [2022-03-01 17:08:36,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:36,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:36,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:36,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:36,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:36,894 INFO L87 Difference]: Start difference. First operand 1392 states and 5499 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:37,003 INFO L93 Difference]: Finished difference Result 2619 states and 9649 transitions. [2022-03-01 17:08:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:37,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:37,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:37,009 INFO L225 Difference]: With dead ends: 2619 [2022-03-01 17:08:37,009 INFO L226 Difference]: Without dead ends: 2430 [2022-03-01 17:08:37,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:37,009 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 95 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:37,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 163 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-03-01 17:08:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1416. [2022-03-01 17:08:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.939929328621908) internal successors, (5575), 1415 states have internal predecessors, (5575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5575 transitions. [2022-03-01 17:08:37,036 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5575 transitions. Word has length 25 [2022-03-01 17:08:37,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:37,036 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5575 transitions. [2022-03-01 17:08:37,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5575 transitions. [2022-03-01 17:08:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:37,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:37,039 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] [2022-03-01 17:08:37,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-01 17:08:37,039 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:37,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:37,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1248841037, now seen corresponding path program 334 times [2022-03-01 17:08:37,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:37,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677149855] [2022-03-01 17:08:37,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:37,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:37,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:37,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677149855] [2022-03-01 17:08:37,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677149855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:37,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:37,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:37,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520911338] [2022-03-01 17:08:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:37,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:37,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:37,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:37,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:37,137 INFO L87 Difference]: Start difference. First operand 1416 states and 5575 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:37,230 INFO L93 Difference]: Finished difference Result 2477 states and 9195 transitions. [2022-03-01 17:08:37,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:37,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:37,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:37,236 INFO L225 Difference]: With dead ends: 2477 [2022-03-01 17:08:37,236 INFO L226 Difference]: Without dead ends: 2278 [2022-03-01 17:08:37,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:37,236 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:37,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 151 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2022-03-01 17:08:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 1392. [2022-03-01 17:08:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9446441409058233) internal successors, (5487), 1391 states have internal predecessors, (5487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5487 transitions. [2022-03-01 17:08:37,260 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5487 transitions. Word has length 25 [2022-03-01 17:08:37,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:37,260 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5487 transitions. [2022-03-01 17:08:37,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5487 transitions. [2022-03-01 17:08:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:37,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:37,262 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] [2022-03-01 17:08:37,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-01 17:08:37,262 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1566724753, now seen corresponding path program 335 times [2022-03-01 17:08:37,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:37,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539941233] [2022-03-01 17:08:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:37,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:37,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:37,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539941233] [2022-03-01 17:08:37,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539941233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:37,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:37,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:37,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307904722] [2022-03-01 17:08:37,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:37,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:37,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:37,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:37,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:37,399 INFO L87 Difference]: Start difference. First operand 1392 states and 5487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:37,510 INFO L93 Difference]: Finished difference Result 2485 states and 9235 transitions. [2022-03-01 17:08:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:37,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:37,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:37,517 INFO L225 Difference]: With dead ends: 2485 [2022-03-01 17:08:37,517 INFO L226 Difference]: Without dead ends: 2302 [2022-03-01 17:08:37,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:37,517 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 93 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:37,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 154 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:37,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-01 17:08:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1416. [2022-03-01 17:08:37,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1415 states have (on average 3.9314487632508834) internal successors, (5563), 1415 states have internal predecessors, (5563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 5563 transitions. [2022-03-01 17:08:37,546 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 5563 transitions. Word has length 25 [2022-03-01 17:08:37,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:37,546 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 5563 transitions. [2022-03-01 17:08:37,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 5563 transitions. [2022-03-01 17:08:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:37,548 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:37,548 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] [2022-03-01 17:08:37,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-01 17:08:37,549 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1647179917, now seen corresponding path program 336 times [2022-03-01 17:08:37,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:37,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760852472] [2022-03-01 17:08:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:37,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:37,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760852472] [2022-03-01 17:08:37,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760852472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:37,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:37,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:37,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996602235] [2022-03-01 17:08:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:37,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:37,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:37,669 INFO L87 Difference]: Start difference. First operand 1416 states and 5563 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:37,770 INFO L93 Difference]: Finished difference Result 2301 states and 8622 transitions. [2022-03-01 17:08:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:37,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:37,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:37,776 INFO L225 Difference]: With dead ends: 2301 [2022-03-01 17:08:37,776 INFO L226 Difference]: Without dead ends: 2086 [2022-03-01 17:08:37,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:37,776 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 85 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:37,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 135 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:37,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2022-03-01 17:08:37,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1376. [2022-03-01 17:08:37,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1375 states have (on average 3.96) internal successors, (5445), 1375 states have internal predecessors, (5445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 5445 transitions. [2022-03-01 17:08:37,800 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 5445 transitions. Word has length 25 [2022-03-01 17:08:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:37,800 INFO L470 AbstractCegarLoop]: Abstraction has 1376 states and 5445 transitions. [2022-03-01 17:08:37,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 5445 transitions. [2022-03-01 17:08:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:37,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:37,803 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] [2022-03-01 17:08:37,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-01 17:08:37,803 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:37,803 INFO L85 PathProgramCache]: Analyzing trace with hash 80867255, now seen corresponding path program 337 times [2022-03-01 17:08:37,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:37,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097332680] [2022-03-01 17:08:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:37,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:37,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:37,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097332680] [2022-03-01 17:08:37,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097332680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:37,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:37,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:37,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997190463] [2022-03-01 17:08:37,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:37,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:37,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:37,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:37,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:37,926 INFO L87 Difference]: Start difference. First operand 1376 states and 5445 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:38,042 INFO L93 Difference]: Finished difference Result 3065 states and 11402 transitions. [2022-03-01 17:08:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:38,050 INFO L225 Difference]: With dead ends: 3065 [2022-03-01 17:08:38,050 INFO L226 Difference]: Without dead ends: 2876 [2022-03-01 17:08:38,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:38,050 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 111 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:38,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 144 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:38,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2876 states. [2022-03-01 17:08:38,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2876 to 1430. [2022-03-01 17:08:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 3.9580125962211334) internal successors, (5656), 1429 states have internal predecessors, (5656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 5656 transitions. [2022-03-01 17:08:38,082 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 5656 transitions. Word has length 25 [2022-03-01 17:08:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:38,082 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 5656 transitions. [2022-03-01 17:08:38,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 5656 transitions. [2022-03-01 17:08:38,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:38,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:38,084 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] [2022-03-01 17:08:38,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-01 17:08:38,084 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:38,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1311277291, now seen corresponding path program 338 times [2022-03-01 17:08:38,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:38,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159466881] [2022-03-01 17:08:38,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:38,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:38,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:38,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159466881] [2022-03-01 17:08:38,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159466881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:38,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:38,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:38,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288348381] [2022-03-01 17:08:38,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:38,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:38,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:38,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:38,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:38,209 INFO L87 Difference]: Start difference. First operand 1430 states and 5656 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:38,322 INFO L93 Difference]: Finished difference Result 3059 states and 11357 transitions. [2022-03-01 17:08:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:38,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:38,329 INFO L225 Difference]: With dead ends: 3059 [2022-03-01 17:08:38,330 INFO L226 Difference]: Without dead ends: 2848 [2022-03-01 17:08:38,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:38,330 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 114 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:38,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 140 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:38,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2022-03-01 17:08:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1402. [2022-03-01 17:08:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9657387580299788) internal successors, (5556), 1401 states have internal predecessors, (5556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5556 transitions. [2022-03-01 17:08:38,361 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5556 transitions. Word has length 25 [2022-03-01 17:08:38,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:38,361 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5556 transitions. [2022-03-01 17:08:38,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5556 transitions. [2022-03-01 17:08:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:38,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:38,363 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] [2022-03-01 17:08:38,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-01 17:08:38,363 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash -765929707, now seen corresponding path program 339 times [2022-03-01 17:08:38,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:38,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381446219] [2022-03-01 17:08:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:38,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:38,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:38,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381446219] [2022-03-01 17:08:38,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381446219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:38,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:38,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:38,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362684013] [2022-03-01 17:08:38,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:38,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:38,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:38,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:38,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:38,500 INFO L87 Difference]: Start difference. First operand 1402 states and 5556 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:38,626 INFO L93 Difference]: Finished difference Result 3053 states and 11346 transitions. [2022-03-01 17:08:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:38,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:38,632 INFO L225 Difference]: With dead ends: 3053 [2022-03-01 17:08:38,632 INFO L226 Difference]: Without dead ends: 2864 [2022-03-01 17:08:38,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:38,633 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 118 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:38,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 133 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:38,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2022-03-01 17:08:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 1426. [2022-03-01 17:08:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 3.952280701754386) internal successors, (5632), 1425 states have internal predecessors, (5632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 5632 transitions. [2022-03-01 17:08:38,658 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 5632 transitions. Word has length 25 [2022-03-01 17:08:38,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:38,658 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 5632 transitions. [2022-03-01 17:08:38,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 5632 transitions. [2022-03-01 17:08:38,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:38,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:38,661 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] [2022-03-01 17:08:38,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-01 17:08:38,661 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:38,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:38,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1077729173, now seen corresponding path program 340 times [2022-03-01 17:08:38,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:38,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048020850] [2022-03-01 17:08:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:38,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:38,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:38,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048020850] [2022-03-01 17:08:38,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048020850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:38,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:38,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:38,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904510697] [2022-03-01 17:08:38,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:38,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:38,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:38,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:38,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:38,777 INFO L87 Difference]: Start difference. First operand 1426 states and 5632 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:38,901 INFO L93 Difference]: Finished difference Result 3039 states and 11277 transitions. [2022-03-01 17:08:38,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:38,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:38,908 INFO L225 Difference]: With dead ends: 3039 [2022-03-01 17:08:38,908 INFO L226 Difference]: Without dead ends: 2840 [2022-03-01 17:08:38,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:38,908 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:38,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 164 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2022-03-01 17:08:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 1402. [2022-03-01 17:08:38,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9571734475374734) internal successors, (5544), 1401 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5544 transitions. [2022-03-01 17:08:38,934 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5544 transitions. Word has length 25 [2022-03-01 17:08:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:38,934 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5544 transitions. [2022-03-01 17:08:38,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5544 transitions. [2022-03-01 17:08:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:38,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:38,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:38,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-01 17:08:38,937 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:38,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:38,937 INFO L85 PathProgramCache]: Analyzing trace with hash -401672333, now seen corresponding path program 341 times [2022-03-01 17:08:38,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:38,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732014315] [2022-03-01 17:08:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:38,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:39,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:39,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732014315] [2022-03-01 17:08:39,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732014315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:39,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:39,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:39,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982350590] [2022-03-01 17:08:39,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:39,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:39,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:39,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:39,054 INFO L87 Difference]: Start difference. First operand 1402 states and 5544 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:39,169 INFO L93 Difference]: Finished difference Result 3041 states and 11300 transitions. [2022-03-01 17:08:39,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:39,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:39,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:39,175 INFO L225 Difference]: With dead ends: 3041 [2022-03-01 17:08:39,175 INFO L226 Difference]: Without dead ends: 2858 [2022-03-01 17:08:39,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:39,175 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:39,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 151 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2022-03-01 17:08:39,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 1426. [2022-03-01 17:08:39,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 3.943859649122807) internal successors, (5620), 1425 states have internal predecessors, (5620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 5620 transitions. [2022-03-01 17:08:39,201 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 5620 transitions. Word has length 25 [2022-03-01 17:08:39,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:39,201 INFO L470 AbstractCegarLoop]: Abstraction has 1426 states and 5620 transitions. [2022-03-01 17:08:39,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 5620 transitions. [2022-03-01 17:08:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:39,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:39,203 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] [2022-03-01 17:08:39,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-01 17:08:39,203 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:39,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:39,204 INFO L85 PathProgramCache]: Analyzing trace with hash 679390293, now seen corresponding path program 342 times [2022-03-01 17:08:39,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:39,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157656903] [2022-03-01 17:08:39,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:39,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:39,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:39,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157656903] [2022-03-01 17:08:39,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157656903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:39,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:39,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:39,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602062698] [2022-03-01 17:08:39,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:39,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:39,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:39,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:39,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:39,331 INFO L87 Difference]: Start difference. First operand 1426 states and 5620 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:39,453 INFO L93 Difference]: Finished difference Result 3033 states and 11248 transitions. [2022-03-01 17:08:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:39,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:39,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:39,459 INFO L225 Difference]: With dead ends: 3033 [2022-03-01 17:08:39,459 INFO L226 Difference]: Without dead ends: 2822 [2022-03-01 17:08:39,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:39,460 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 93 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:39,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 159 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2022-03-01 17:08:39,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 1390. [2022-03-01 17:08:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.9640028797696183) internal successors, (5506), 1389 states have internal predecessors, (5506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5506 transitions. [2022-03-01 17:08:39,490 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5506 transitions. Word has length 25 [2022-03-01 17:08:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:39,490 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5506 transitions. [2022-03-01 17:08:39,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5506 transitions. [2022-03-01 17:08:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:39,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:39,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:39,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-01 17:08:39,492 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1882487659, now seen corresponding path program 343 times [2022-03-01 17:08:39,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:39,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995106165] [2022-03-01 17:08:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:39,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:39,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:39,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995106165] [2022-03-01 17:08:39,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995106165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:39,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:39,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:39,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471054422] [2022-03-01 17:08:39,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:39,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:39,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:39,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:39,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:39,625 INFO L87 Difference]: Start difference. First operand 1390 states and 5506 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:39,744 INFO L93 Difference]: Finished difference Result 3096 states and 11479 transitions. [2022-03-01 17:08:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:39,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:39,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:39,751 INFO L225 Difference]: With dead ends: 3096 [2022-03-01 17:08:39,752 INFO L226 Difference]: Without dead ends: 2907 [2022-03-01 17:08:39,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:39,752 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:39,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 152 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:39,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2022-03-01 17:08:39,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1448. [2022-03-01 17:08:39,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1447 states have (on average 3.9550794747753972) internal successors, (5723), 1447 states have internal predecessors, (5723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 5723 transitions. [2022-03-01 17:08:39,783 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 5723 transitions. Word has length 25 [2022-03-01 17:08:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:39,783 INFO L470 AbstractCegarLoop]: Abstraction has 1448 states and 5723 transitions. [2022-03-01 17:08:39,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 5723 transitions. [2022-03-01 17:08:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:39,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:39,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:39,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-01 17:08:39,786 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:39,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1020335091, now seen corresponding path program 344 times [2022-03-01 17:08:39,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:39,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304596228] [2022-03-01 17:08:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:39,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:39,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:39,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304596228] [2022-03-01 17:08:39,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304596228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:39,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:39,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:39,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916283693] [2022-03-01 17:08:39,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:39,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:39,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:39,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:39,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:39,915 INFO L87 Difference]: Start difference. First operand 1448 states and 5723 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:40,043 INFO L93 Difference]: Finished difference Result 3090 states and 11434 transitions. [2022-03-01 17:08:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:40,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:40,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:40,052 INFO L225 Difference]: With dead ends: 3090 [2022-03-01 17:08:40,052 INFO L226 Difference]: Without dead ends: 2879 [2022-03-01 17:08:40,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:40,053 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:40,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 128 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:40,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2022-03-01 17:08:40,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 1420. [2022-03-01 17:08:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9612403100775193) internal successors, (5621), 1419 states have internal predecessors, (5621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5621 transitions. [2022-03-01 17:08:40,089 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5621 transitions. Word has length 25 [2022-03-01 17:08:40,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:40,089 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5621 transitions. [2022-03-01 17:08:40,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5621 transitions. [2022-03-01 17:08:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:40,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:40,092 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] [2022-03-01 17:08:40,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-01 17:08:40,092 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:40,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:40,092 INFO L85 PathProgramCache]: Analyzing trace with hash 505592981, now seen corresponding path program 345 times [2022-03-01 17:08:40,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:40,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221764681] [2022-03-01 17:08:40,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:40,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:40,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:40,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221764681] [2022-03-01 17:08:40,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221764681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:40,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:40,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:40,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013302013] [2022-03-01 17:08:40,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:40,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:40,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:40,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:40,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:40,222 INFO L87 Difference]: Start difference. First operand 1420 states and 5621 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:40,339 INFO L93 Difference]: Finished difference Result 3170 states and 11718 transitions. [2022-03-01 17:08:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:40,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:40,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:40,346 INFO L225 Difference]: With dead ends: 3170 [2022-03-01 17:08:40,346 INFO L226 Difference]: Without dead ends: 2981 [2022-03-01 17:08:40,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:40,347 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 142 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:40,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 124 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:40,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2022-03-01 17:08:40,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 1483. [2022-03-01 17:08:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1482 states have (on average 3.932523616734143) internal successors, (5828), 1482 states have internal predecessors, (5828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 5828 transitions. [2022-03-01 17:08:40,377 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 5828 transitions. Word has length 25 [2022-03-01 17:08:40,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:40,377 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 5828 transitions. [2022-03-01 17:08:40,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 5828 transitions. [2022-03-01 17:08:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:40,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:40,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:40,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-01 17:08:40,380 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1237675285, now seen corresponding path program 346 times [2022-03-01 17:08:40,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:40,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125392565] [2022-03-01 17:08:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:40,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:40,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:40,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125392565] [2022-03-01 17:08:40,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125392565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:40,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:40,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:40,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984892532] [2022-03-01 17:08:40,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:40,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:40,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:40,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:40,504 INFO L87 Difference]: Start difference. First operand 1483 states and 5828 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:40,623 INFO L93 Difference]: Finished difference Result 3203 states and 11801 transitions. [2022-03-01 17:08:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:40,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:40,630 INFO L225 Difference]: With dead ends: 3203 [2022-03-01 17:08:40,630 INFO L226 Difference]: Without dead ends: 2918 [2022-03-01 17:08:40,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:40,630 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 117 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:40,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 142 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:40,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2918 states. [2022-03-01 17:08:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2918 to 1420. [2022-03-01 17:08:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9400986610288937) internal successors, (5591), 1419 states have internal predecessors, (5591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5591 transitions. [2022-03-01 17:08:40,660 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5591 transitions. Word has length 25 [2022-03-01 17:08:40,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:40,661 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5591 transitions. [2022-03-01 17:08:40,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5591 transitions. [2022-03-01 17:08:40,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:40,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:40,663 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] [2022-03-01 17:08:40,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-01 17:08:40,663 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:40,663 INFO L85 PathProgramCache]: Analyzing trace with hash 869850355, now seen corresponding path program 347 times [2022-03-01 17:08:40,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:40,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11607022] [2022-03-01 17:08:40,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:40,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:40,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:40,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11607022] [2022-03-01 17:08:40,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11607022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:40,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:40,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:40,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548020568] [2022-03-01 17:08:40,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:40,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:40,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:40,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:40,792 INFO L87 Difference]: Start difference. First operand 1420 states and 5591 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:40,922 INFO L93 Difference]: Finished difference Result 3139 states and 11596 transitions. [2022-03-01 17:08:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:40,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:40,929 INFO L225 Difference]: With dead ends: 3139 [2022-03-01 17:08:40,930 INFO L226 Difference]: Without dead ends: 2956 [2022-03-01 17:08:40,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:40,930 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:40,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:40,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2022-03-01 17:08:40,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 1464. [2022-03-01 17:08:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1463 states have (on average 3.9254955570745045) internal successors, (5743), 1463 states have internal predecessors, (5743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 5743 transitions. [2022-03-01 17:08:40,960 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 5743 transitions. Word has length 25 [2022-03-01 17:08:40,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:40,961 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 5743 transitions. [2022-03-01 17:08:40,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 5743 transitions. [2022-03-01 17:08:40,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:40,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:40,963 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] [2022-03-01 17:08:40,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-01 17:08:40,963 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash -199668651, now seen corresponding path program 348 times [2022-03-01 17:08:40,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:40,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758544996] [2022-03-01 17:08:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:40,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:41,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:41,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758544996] [2022-03-01 17:08:41,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758544996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:41,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:41,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:41,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222963484] [2022-03-01 17:08:41,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:41,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:41,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:41,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:41,091 INFO L87 Difference]: Start difference. First operand 1464 states and 5743 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:41,201 INFO L93 Difference]: Finished difference Result 3178 states and 11699 transitions. [2022-03-01 17:08:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:41,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:41,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:41,208 INFO L225 Difference]: With dead ends: 3178 [2022-03-01 17:08:41,209 INFO L226 Difference]: Without dead ends: 2882 [2022-03-01 17:08:41,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:41,209 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 116 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:41,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 150 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2022-03-01 17:08:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 1390. [2022-03-01 17:08:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.9539236861051115) internal successors, (5492), 1389 states have internal predecessors, (5492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5492 transitions. [2022-03-01 17:08:41,237 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5492 transitions. Word has length 25 [2022-03-01 17:08:41,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:41,237 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5492 transitions. [2022-03-01 17:08:41,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5492 transitions. [2022-03-01 17:08:41,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:41,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:41,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:41,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-01 17:08:41,240 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:41,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:41,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1555731571, now seen corresponding path program 349 times [2022-03-01 17:08:41,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:41,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339533402] [2022-03-01 17:08:41,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:41,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:41,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:41,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339533402] [2022-03-01 17:08:41,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339533402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:41,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:41,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:41,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523519024] [2022-03-01 17:08:41,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:41,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:41,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:41,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:41,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:41,364 INFO L87 Difference]: Start difference. First operand 1390 states and 5492 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:41,481 INFO L93 Difference]: Finished difference Result 3038 states and 11232 transitions. [2022-03-01 17:08:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:41,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:41,489 INFO L225 Difference]: With dead ends: 3038 [2022-03-01 17:08:41,489 INFO L226 Difference]: Without dead ends: 2849 [2022-03-01 17:08:41,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:41,490 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 130 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:41,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 129 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-03-01 17:08:41,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 1442. [2022-03-01 17:08:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1441 states have (on average 3.947258848022207) internal successors, (5688), 1441 states have internal predecessors, (5688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 5688 transitions. [2022-03-01 17:08:41,527 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 5688 transitions. Word has length 25 [2022-03-01 17:08:41,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:41,527 INFO L470 AbstractCegarLoop]: Abstraction has 1442 states and 5688 transitions. [2022-03-01 17:08:41,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 5688 transitions. [2022-03-01 17:08:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:41,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:41,530 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] [2022-03-01 17:08:41,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-01 17:08:41,530 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:41,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:41,531 INFO L85 PathProgramCache]: Analyzing trace with hash -895576845, now seen corresponding path program 350 times [2022-03-01 17:08:41,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:41,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831989150] [2022-03-01 17:08:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:41,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:41,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:41,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:41,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831989150] [2022-03-01 17:08:41,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831989150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:41,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:41,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:41,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080898637] [2022-03-01 17:08:41,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:41,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:41,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:41,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:41,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:41,628 INFO L87 Difference]: Start difference. First operand 1442 states and 5688 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:41,711 INFO L93 Difference]: Finished difference Result 3024 states and 11163 transitions. [2022-03-01 17:08:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:41,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:41,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:41,718 INFO L225 Difference]: With dead ends: 3024 [2022-03-01 17:08:41,718 INFO L226 Difference]: Without dead ends: 2825 [2022-03-01 17:08:41,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:41,718 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:41,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 145 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:41,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2022-03-01 17:08:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 1418. [2022-03-01 17:08:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.952011291460833) internal successors, (5600), 1417 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5600 transitions. [2022-03-01 17:08:41,748 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5600 transitions. Word has length 25 [2022-03-01 17:08:41,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:41,748 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5600 transitions. [2022-03-01 17:08:41,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5600 transitions. [2022-03-01 17:08:41,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:41,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:41,750 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] [2022-03-01 17:08:41,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-01 17:08:41,750 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:41,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash 938208213, now seen corresponding path program 351 times [2022-03-01 17:08:41,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:41,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102771919] [2022-03-01 17:08:41,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:41,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:41,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:41,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102771919] [2022-03-01 17:08:41,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102771919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:41,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:41,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:41,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294686441] [2022-03-01 17:08:41,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:41,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:41,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:41,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:41,827 INFO L87 Difference]: Start difference. First operand 1418 states and 5600 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:41,920 INFO L93 Difference]: Finished difference Result 3061 states and 11279 transitions. [2022-03-01 17:08:41,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:41,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:41,926 INFO L225 Difference]: With dead ends: 3061 [2022-03-01 17:08:41,926 INFO L226 Difference]: Without dead ends: 2872 [2022-03-01 17:08:41,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:41,927 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 98 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:41,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 169 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2022-03-01 17:08:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 1481. [2022-03-01 17:08:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 1480 states have (on average 3.9236486486486486) internal successors, (5807), 1480 states have internal predecessors, (5807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 5807 transitions. [2022-03-01 17:08:41,963 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 5807 transitions. Word has length 25 [2022-03-01 17:08:41,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:41,963 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 5807 transitions. [2022-03-01 17:08:41,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:41,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 5807 transitions. [2022-03-01 17:08:41,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:41,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:41,965 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] [2022-03-01 17:08:41,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-01 17:08:41,965 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:41,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:41,966 INFO L85 PathProgramCache]: Analyzing trace with hash -785386253, now seen corresponding path program 352 times [2022-03-01 17:08:41,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:41,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986100431] [2022-03-01 17:08:41,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:41,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:42,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:42,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986100431] [2022-03-01 17:08:42,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986100431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:42,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:42,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:42,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823022254] [2022-03-01 17:08:42,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:42,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:42,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:42,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:42,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:42,059 INFO L87 Difference]: Start difference. First operand 1481 states and 5807 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:42,161 INFO L93 Difference]: Finished difference Result 3094 states and 11362 transitions. [2022-03-01 17:08:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:42,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:42,168 INFO L225 Difference]: With dead ends: 3094 [2022-03-01 17:08:42,168 INFO L226 Difference]: Without dead ends: 2809 [2022-03-01 17:08:42,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:42,168 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:42,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 140 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2022-03-01 17:08:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 1418. [2022-03-01 17:08:42,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.9322512350035286) internal successors, (5572), 1417 states have internal predecessors, (5572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5572 transitions. [2022-03-01 17:08:42,196 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5572 transitions. Word has length 25 [2022-03-01 17:08:42,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:42,197 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5572 transitions. [2022-03-01 17:08:42,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5572 transitions. [2022-03-01 17:08:42,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:42,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:42,199 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] [2022-03-01 17:08:42,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-01 17:08:42,199 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:42,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:42,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1739119245, now seen corresponding path program 353 times [2022-03-01 17:08:42,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:42,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616227746] [2022-03-01 17:08:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:42,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:42,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:42,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616227746] [2022-03-01 17:08:42,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616227746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:42,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:42,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:42,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340135288] [2022-03-01 17:08:42,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:42,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:42,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:42,316 INFO L87 Difference]: Start difference. First operand 1418 states and 5572 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:42,406 INFO L93 Difference]: Finished difference Result 3010 states and 11087 transitions. [2022-03-01 17:08:42,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:42,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:42,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:42,412 INFO L225 Difference]: With dead ends: 3010 [2022-03-01 17:08:42,412 INFO L226 Difference]: Without dead ends: 2835 [2022-03-01 17:08:42,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:42,413 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 111 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:42,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 144 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:42,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-03-01 17:08:42,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 1458. [2022-03-01 17:08:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1457 states have (on average 3.9203843514070007) internal successors, (5712), 1457 states have internal predecessors, (5712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 5712 transitions. [2022-03-01 17:08:42,442 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 5712 transitions. Word has length 25 [2022-03-01 17:08:42,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:42,442 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 5712 transitions. [2022-03-01 17:08:42,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 5712 transitions. [2022-03-01 17:08:42,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:42,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:42,444 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] [2022-03-01 17:08:42,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-01 17:08:42,444 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:42,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1520767659, now seen corresponding path program 354 times [2022-03-01 17:08:42,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:42,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413799186] [2022-03-01 17:08:42,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:42,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:42,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:42,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413799186] [2022-03-01 17:08:42,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413799186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:42,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:42,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:42,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564052637] [2022-03-01 17:08:42,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:42,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:42,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:42,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:42,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:42,547 INFO L87 Difference]: Start difference. First operand 1458 states and 5712 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:42,643 INFO L93 Difference]: Finished difference Result 2962 states and 10887 transitions. [2022-03-01 17:08:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:42,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:42,649 INFO L225 Difference]: With dead ends: 2962 [2022-03-01 17:08:42,649 INFO L226 Difference]: Without dead ends: 2672 [2022-03-01 17:08:42,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:42,649 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 95 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:42,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 155 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:42,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-03-01 17:08:42,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1390. [2022-03-01 17:08:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.9438444924406046) internal successors, (5478), 1389 states have internal predecessors, (5478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5478 transitions. [2022-03-01 17:08:42,675 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5478 transitions. Word has length 25 [2022-03-01 17:08:42,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:42,675 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5478 transitions. [2022-03-01 17:08:42,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5478 transitions. [2022-03-01 17:08:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:42,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:42,678 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] [2022-03-01 17:08:42,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-01 17:08:42,678 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:42,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:42,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1900086737, now seen corresponding path program 355 times [2022-03-01 17:08:42,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:42,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631446145] [2022-03-01 17:08:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:42,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:42,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:42,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631446145] [2022-03-01 17:08:42,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631446145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:42,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:42,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:42,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510023593] [2022-03-01 17:08:42,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:42,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:42,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:42,753 INFO L87 Difference]: Start difference. First operand 1390 states and 5478 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:42,830 INFO L93 Difference]: Finished difference Result 2993 states and 11081 transitions. [2022-03-01 17:08:42,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:42,831 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:42,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:42,837 INFO L225 Difference]: With dead ends: 2993 [2022-03-01 17:08:42,837 INFO L226 Difference]: Without dead ends: 2810 [2022-03-01 17:08:42,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:42,837 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:42,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 134 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:42,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-03-01 17:08:42,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1434. [2022-03-01 17:08:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1433 states have (on average 3.939986043265876) internal successors, (5646), 1433 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 5646 transitions. [2022-03-01 17:08:42,865 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 5646 transitions. Word has length 25 [2022-03-01 17:08:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:42,865 INFO L470 AbstractCegarLoop]: Abstraction has 1434 states and 5646 transitions. [2022-03-01 17:08:42,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 5646 transitions. [2022-03-01 17:08:42,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:42,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:42,867 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] [2022-03-01 17:08:42,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-01 17:08:42,867 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:42,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:42,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1313817933, now seen corresponding path program 356 times [2022-03-01 17:08:42,868 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:42,868 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067871075] [2022-03-01 17:08:42,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:42,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:42,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:42,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067871075] [2022-03-01 17:08:42,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067871075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:42,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:42,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:42,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963765044] [2022-03-01 17:08:42,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:42,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:42,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:42,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:42,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:42,944 INFO L87 Difference]: Start difference. First operand 1434 states and 5646 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:43,033 INFO L93 Difference]: Finished difference Result 2985 states and 11029 transitions. [2022-03-01 17:08:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:43,040 INFO L225 Difference]: With dead ends: 2985 [2022-03-01 17:08:43,040 INFO L226 Difference]: Without dead ends: 2786 [2022-03-01 17:08:43,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:43,040 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:43,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 148 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2022-03-01 17:08:43,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1410. [2022-03-01 17:08:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 3.944641589779986) internal successors, (5558), 1409 states have internal predecessors, (5558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5558 transitions. [2022-03-01 17:08:43,067 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5558 transitions. Word has length 25 [2022-03-01 17:08:43,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:43,067 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 5558 transitions. [2022-03-01 17:08:43,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5558 transitions. [2022-03-01 17:08:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:43,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:43,069 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] [2022-03-01 17:08:43,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-01 17:08:43,070 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:43,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:43,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1282563379, now seen corresponding path program 357 times [2022-03-01 17:08:43,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:43,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574123688] [2022-03-01 17:08:43,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:43,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:43,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:43,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574123688] [2022-03-01 17:08:43,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574123688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:43,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:43,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:43,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883987297] [2022-03-01 17:08:43,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:43,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:43,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:43,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:43,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:43,170 INFO L87 Difference]: Start difference. First operand 1410 states and 5558 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:43,272 INFO L93 Difference]: Finished difference Result 2921 states and 10793 transitions. [2022-03-01 17:08:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:43,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:43,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:43,278 INFO L225 Difference]: With dead ends: 2921 [2022-03-01 17:08:43,278 INFO L226 Difference]: Without dead ends: 2738 [2022-03-01 17:08:43,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:43,278 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:43,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 151 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:43,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-03-01 17:08:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 1454. [2022-03-01 17:08:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 3.9298004129387474) internal successors, (5710), 1453 states have internal predecessors, (5710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 5710 transitions. [2022-03-01 17:08:43,306 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 5710 transitions. Word has length 25 [2022-03-01 17:08:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:43,307 INFO L470 AbstractCegarLoop]: Abstraction has 1454 states and 5710 transitions. [2022-03-01 17:08:43,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 5710 transitions. [2022-03-01 17:08:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:43,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:43,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:43,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-01 17:08:43,309 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2052334899, now seen corresponding path program 358 times [2022-03-01 17:08:43,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:43,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758665464] [2022-03-01 17:08:43,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:43,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:43,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758665464] [2022-03-01 17:08:43,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758665464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:43,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:43,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:43,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241004189] [2022-03-01 17:08:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:43,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:43,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:43,408 INFO L87 Difference]: Start difference. First operand 1454 states and 5710 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:43,498 INFO L93 Difference]: Finished difference Result 2960 states and 10896 transitions. [2022-03-01 17:08:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:43,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:43,503 INFO L225 Difference]: With dead ends: 2960 [2022-03-01 17:08:43,503 INFO L226 Difference]: Without dead ends: 2694 [2022-03-01 17:08:43,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:43,504 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 109 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:43,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 138 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:43,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-03-01 17:08:43,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1410. [2022-03-01 17:08:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1409 states have (on average 3.930447125621008) internal successors, (5538), 1409 states have internal predecessors, (5538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5538 transitions. [2022-03-01 17:08:43,529 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5538 transitions. Word has length 25 [2022-03-01 17:08:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:43,529 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 5538 transitions. [2022-03-01 17:08:43,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5538 transitions. [2022-03-01 17:08:43,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:43,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:43,531 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] [2022-03-01 17:08:43,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-01 17:08:43,531 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1670568341, now seen corresponding path program 359 times [2022-03-01 17:08:43,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:43,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169011939] [2022-03-01 17:08:43,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:43,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:43,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:43,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169011939] [2022-03-01 17:08:43,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169011939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:43,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:43,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:43,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831667342] [2022-03-01 17:08:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:43,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:43,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:43,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:43,643 INFO L87 Difference]: Start difference. First operand 1410 states and 5538 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:43,761 INFO L93 Difference]: Finished difference Result 2861 states and 10537 transitions. [2022-03-01 17:08:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:43,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:43,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:43,767 INFO L225 Difference]: With dead ends: 2861 [2022-03-01 17:08:43,767 INFO L226 Difference]: Without dead ends: 2686 [2022-03-01 17:08:43,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:43,768 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 99 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:43,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 148 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:43,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2022-03-01 17:08:43,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 1450. [2022-03-01 17:08:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 3.9185645272601795) internal successors, (5678), 1449 states have internal predecessors, (5678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5678 transitions. [2022-03-01 17:08:43,793 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5678 transitions. Word has length 25 [2022-03-01 17:08:43,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:43,793 INFO L470 AbstractCegarLoop]: Abstraction has 1450 states and 5678 transitions. [2022-03-01 17:08:43,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:43,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5678 transitions. [2022-03-01 17:08:43,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:43,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:43,795 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] [2022-03-01 17:08:43,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-01 17:08:43,795 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash -150467085, now seen corresponding path program 360 times [2022-03-01 17:08:43,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:43,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914008266] [2022-03-01 17:08:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:43,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:43,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914008266] [2022-03-01 17:08:43,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914008266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:43,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:43,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:43,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582798141] [2022-03-01 17:08:43,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:43,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:43,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:43,897 INFO L87 Difference]: Start difference. First operand 1450 states and 5678 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:44,019 INFO L93 Difference]: Finished difference Result 2813 states and 10337 transitions. [2022-03-01 17:08:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:44,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:44,025 INFO L225 Difference]: With dead ends: 2813 [2022-03-01 17:08:44,025 INFO L226 Difference]: Without dead ends: 2511 [2022-03-01 17:08:44,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:44,031 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 94 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:44,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 140 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:44,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-03-01 17:08:44,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 1370. [2022-03-01 17:08:44,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9656683710737766) internal successors, (5429), 1369 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5429 transitions. [2022-03-01 17:08:44,060 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5429 transitions. Word has length 25 [2022-03-01 17:08:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:44,060 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5429 transitions. [2022-03-01 17:08:44,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5429 transitions. [2022-03-01 17:08:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:44,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:44,063 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] [2022-03-01 17:08:44,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-01 17:08:44,063 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:44,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:44,063 INFO L85 PathProgramCache]: Analyzing trace with hash -789015661, now seen corresponding path program 361 times [2022-03-01 17:08:44,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:44,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805159393] [2022-03-01 17:08:44,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:44,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:44,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:44,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805159393] [2022-03-01 17:08:44,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805159393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:44,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:44,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:44,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497493028] [2022-03-01 17:08:44,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:44,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:44,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:44,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:44,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:44,190 INFO L87 Difference]: Start difference. First operand 1370 states and 5429 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:44,301 INFO L93 Difference]: Finished difference Result 2920 states and 10769 transitions. [2022-03-01 17:08:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:44,307 INFO L225 Difference]: With dead ends: 2920 [2022-03-01 17:08:44,307 INFO L226 Difference]: Without dead ends: 2761 [2022-03-01 17:08:44,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:44,307 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 103 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:44,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 169 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:44,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-03-01 17:08:44,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1418. [2022-03-01 17:08:44,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.961185603387438) internal successors, (5613), 1417 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5613 transitions. [2022-03-01 17:08:44,337 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5613 transitions. Word has length 25 [2022-03-01 17:08:44,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:44,337 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5613 transitions. [2022-03-01 17:08:44,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5613 transitions. [2022-03-01 17:08:44,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:44,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:44,340 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] [2022-03-01 17:08:44,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-01 17:08:44,340 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:44,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:44,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1797313645, now seen corresponding path program 362 times [2022-03-01 17:08:44,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:44,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729984492] [2022-03-01 17:08:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:44,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:44,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:44,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729984492] [2022-03-01 17:08:44,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729984492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:44,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:44,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:44,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403803772] [2022-03-01 17:08:44,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:44,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:44,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:44,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:44,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:44,465 INFO L87 Difference]: Start difference. First operand 1418 states and 5613 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:44,581 INFO L93 Difference]: Finished difference Result 2983 states and 10976 transitions. [2022-03-01 17:08:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:44,589 INFO L225 Difference]: With dead ends: 2983 [2022-03-01 17:08:44,589 INFO L226 Difference]: Without dead ends: 2729 [2022-03-01 17:08:44,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:44,590 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:44,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2022-03-01 17:08:44,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 1386. [2022-03-01 17:08:44,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.96028880866426) internal successors, (5485), 1385 states have internal predecessors, (5485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5485 transitions. [2022-03-01 17:08:44,646 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5485 transitions. Word has length 25 [2022-03-01 17:08:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:44,647 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5485 transitions. [2022-03-01 17:08:44,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5485 transitions. [2022-03-01 17:08:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:44,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:44,649 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] [2022-03-01 17:08:44,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-01 17:08:44,649 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:44,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:44,649 INFO L85 PathProgramCache]: Analyzing trace with hash 200017845, now seen corresponding path program 363 times [2022-03-01 17:08:44,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:44,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257189554] [2022-03-01 17:08:44,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:44,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:44,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:44,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257189554] [2022-03-01 17:08:44,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257189554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:44,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:44,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:44,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906744635] [2022-03-01 17:08:44,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:44,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:44,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:44,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:44,789 INFO L87 Difference]: Start difference. First operand 1386 states and 5485 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:44,905 INFO L93 Difference]: Finished difference Result 2869 states and 10570 transitions. [2022-03-01 17:08:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:44,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:44,913 INFO L225 Difference]: With dead ends: 2869 [2022-03-01 17:08:44,914 INFO L226 Difference]: Without dead ends: 2710 [2022-03-01 17:08:44,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:44,914 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:44,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 162 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:44,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2022-03-01 17:08:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1402. [2022-03-01 17:08:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9493219129193435) internal successors, (5533), 1401 states have internal predecessors, (5533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5533 transitions. [2022-03-01 17:08:44,949 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5533 transitions. Word has length 25 [2022-03-01 17:08:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:44,949 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5533 transitions. [2022-03-01 17:08:44,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5533 transitions. [2022-03-01 17:08:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:44,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:44,951 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] [2022-03-01 17:08:44,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-01 17:08:44,951 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:44,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:44,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1208315829, now seen corresponding path program 364 times [2022-03-01 17:08:44,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:44,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217054447] [2022-03-01 17:08:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:44,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:45,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:45,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217054447] [2022-03-01 17:08:45,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217054447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:45,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:45,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:45,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225426005] [2022-03-01 17:08:45,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:45,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:45,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:45,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:45,036 INFO L87 Difference]: Start difference. First operand 1402 states and 5533 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:45,120 INFO L93 Difference]: Finished difference Result 2897 states and 10658 transitions. [2022-03-01 17:08:45,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:45,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:45,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:45,128 INFO L225 Difference]: With dead ends: 2897 [2022-03-01 17:08:45,129 INFO L226 Difference]: Without dead ends: 2694 [2022-03-01 17:08:45,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:45,129 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 113 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:45,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 143 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:45,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2694 states. [2022-03-01 17:08:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2694 to 1386. [2022-03-01 17:08:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.954512635379061) internal successors, (5477), 1385 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5477 transitions. [2022-03-01 17:08:45,159 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5477 transitions. Word has length 25 [2022-03-01 17:08:45,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:45,159 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5477 transitions. [2022-03-01 17:08:45,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5477 transitions. [2022-03-01 17:08:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:45,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:45,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:45,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-01 17:08:45,162 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:45,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:45,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1398405195, now seen corresponding path program 365 times [2022-03-01 17:08:45,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:45,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191857434] [2022-03-01 17:08:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:45,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:45,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191857434] [2022-03-01 17:08:45,277 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191857434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:45,277 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:45,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:45,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326644289] [2022-03-01 17:08:45,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:45,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:45,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:45,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:45,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:45,278 INFO L87 Difference]: Start difference. First operand 1386 states and 5477 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:45,380 INFO L93 Difference]: Finished difference Result 2990 states and 11012 transitions. [2022-03-01 17:08:45,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:45,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:45,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:45,386 INFO L225 Difference]: With dead ends: 2990 [2022-03-01 17:08:45,386 INFO L226 Difference]: Without dead ends: 2803 [2022-03-01 17:08:45,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:45,386 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 119 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:45,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 139 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-03-01 17:08:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 1432. [2022-03-01 17:08:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 3.9371069182389937) internal successors, (5634), 1431 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 5634 transitions. [2022-03-01 17:08:45,414 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 5634 transitions. Word has length 25 [2022-03-01 17:08:45,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:45,415 INFO L470 AbstractCegarLoop]: Abstraction has 1432 states and 5634 transitions. [2022-03-01 17:08:45,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 5634 transitions. [2022-03-01 17:08:45,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:45,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:45,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:45,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-01 17:08:45,417 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1751544685, now seen corresponding path program 366 times [2022-03-01 17:08:45,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:45,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281892511] [2022-03-01 17:08:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:45,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:45,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:45,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281892511] [2022-03-01 17:08:45,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281892511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:45,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:45,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:45,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498596260] [2022-03-01 17:08:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:45,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:45,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:45,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:45,538 INFO L87 Difference]: Start difference. First operand 1432 states and 5634 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:45,636 INFO L93 Difference]: Finished difference Result 3025 states and 11101 transitions. [2022-03-01 17:08:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:45,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:45,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:45,642 INFO L225 Difference]: With dead ends: 3025 [2022-03-01 17:08:45,642 INFO L226 Difference]: Without dead ends: 2741 [2022-03-01 17:08:45,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:45,642 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:45,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 144 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2022-03-01 17:08:45,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1370. [2022-03-01 17:08:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.959824689554419) internal successors, (5421), 1369 states have internal predecessors, (5421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5421 transitions. [2022-03-01 17:08:45,666 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5421 transitions. Word has length 25 [2022-03-01 17:08:45,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:45,666 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5421 transitions. [2022-03-01 17:08:45,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5421 transitions. [2022-03-01 17:08:45,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:45,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:45,668 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] [2022-03-01 17:08:45,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-01 17:08:45,668 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:45,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:45,669 INFO L85 PathProgramCache]: Analyzing trace with hash 920586101, now seen corresponding path program 367 times [2022-03-01 17:08:45,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:45,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708002987] [2022-03-01 17:08:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:45,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:45,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:45,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708002987] [2022-03-01 17:08:45,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708002987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:45,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:45,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:45,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369964519] [2022-03-01 17:08:45,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:45,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:45,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:45,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:45,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:45,801 INFO L87 Difference]: Start difference. First operand 1370 states and 5421 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:45,915 INFO L93 Difference]: Finished difference Result 2914 states and 10742 transitions. [2022-03-01 17:08:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:45,921 INFO L225 Difference]: With dead ends: 2914 [2022-03-01 17:08:45,921 INFO L226 Difference]: Without dead ends: 2755 [2022-03-01 17:08:45,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:45,922 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 121 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:45,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 139 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:45,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-03-01 17:08:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1418. [2022-03-01 17:08:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.9555398729710656) internal successors, (5605), 1417 states have internal predecessors, (5605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5605 transitions. [2022-03-01 17:08:45,949 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5605 transitions. Word has length 25 [2022-03-01 17:08:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:45,949 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5605 transitions. [2022-03-01 17:08:45,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5605 transitions. [2022-03-01 17:08:45,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:45,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:45,951 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] [2022-03-01 17:08:45,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-01 17:08:45,951 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:45,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:45,952 INFO L85 PathProgramCache]: Analyzing trace with hash -87711883, now seen corresponding path program 368 times [2022-03-01 17:08:45,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:45,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809892188] [2022-03-01 17:08:45,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:45,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:46,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:46,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:46,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809892188] [2022-03-01 17:08:46,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809892188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:46,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:46,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:46,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754865616] [2022-03-01 17:08:46,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:46,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:46,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:46,033 INFO L87 Difference]: Start difference. First operand 1418 states and 5605 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:46,115 INFO L93 Difference]: Finished difference Result 2977 states and 10949 transitions. [2022-03-01 17:08:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:46,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:46,120 INFO L225 Difference]: With dead ends: 2977 [2022-03-01 17:08:46,120 INFO L226 Difference]: Without dead ends: 2723 [2022-03-01 17:08:46,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:46,123 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:46,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 160 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:46,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-03-01 17:08:46,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1386. [2022-03-01 17:08:46,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.954512635379061) internal successors, (5477), 1385 states have internal predecessors, (5477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5477 transitions. [2022-03-01 17:08:46,148 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5477 transitions. Word has length 25 [2022-03-01 17:08:46,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:46,148 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5477 transitions. [2022-03-01 17:08:46,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5477 transitions. [2022-03-01 17:08:46,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:46,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:46,150 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] [2022-03-01 17:08:46,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-01 17:08:46,151 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:46,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:46,151 INFO L85 PathProgramCache]: Analyzing trace with hash 926338869, now seen corresponding path program 369 times [2022-03-01 17:08:46,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:46,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020140902] [2022-03-01 17:08:46,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:46,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:46,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:46,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020140902] [2022-03-01 17:08:46,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020140902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:46,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:46,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:46,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671456297] [2022-03-01 17:08:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:46,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:46,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:46,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:46,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:46,318 INFO L87 Difference]: Start difference. First operand 1386 states and 5477 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:46,419 INFO L93 Difference]: Finished difference Result 2859 states and 10531 transitions. [2022-03-01 17:08:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:46,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:46,425 INFO L225 Difference]: With dead ends: 2859 [2022-03-01 17:08:46,426 INFO L226 Difference]: Without dead ends: 2700 [2022-03-01 17:08:46,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:46,426 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:46,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:46,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2022-03-01 17:08:46,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 1402. [2022-03-01 17:08:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9436117059243396) internal successors, (5525), 1401 states have internal predecessors, (5525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5525 transitions. [2022-03-01 17:08:46,453 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5525 transitions. Word has length 25 [2022-03-01 17:08:46,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:46,453 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5525 transitions. [2022-03-01 17:08:46,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5525 transitions. [2022-03-01 17:08:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:46,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:46,455 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] [2022-03-01 17:08:46,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-01 17:08:46,455 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:46,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:46,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1688131787, now seen corresponding path program 370 times [2022-03-01 17:08:46,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:46,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771411489] [2022-03-01 17:08:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:46,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:46,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:46,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771411489] [2022-03-01 17:08:46,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771411489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:46,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:46,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:46,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130560087] [2022-03-01 17:08:46,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:46,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:46,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:46,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:46,533 INFO L87 Difference]: Start difference. First operand 1402 states and 5525 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:46,611 INFO L93 Difference]: Finished difference Result 2883 states and 10607 transitions. [2022-03-01 17:08:46,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:46,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:46,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:46,619 INFO L225 Difference]: With dead ends: 2883 [2022-03-01 17:08:46,619 INFO L226 Difference]: Without dead ends: 2684 [2022-03-01 17:08:46,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:46,619 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 114 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:46,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 139 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2684 states. [2022-03-01 17:08:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2684 to 1386. [2022-03-01 17:08:46,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1385 states have (on average 3.948736462093863) internal successors, (5469), 1385 states have internal predecessors, (5469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 5469 transitions. [2022-03-01 17:08:46,655 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 5469 transitions. Word has length 25 [2022-03-01 17:08:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:46,655 INFO L470 AbstractCegarLoop]: Abstraction has 1386 states and 5469 transitions. [2022-03-01 17:08:46,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 5469 transitions. [2022-03-01 17:08:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:46,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:46,658 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] [2022-03-01 17:08:46,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-01 17:08:46,658 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:46,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:46,659 INFO L85 PathProgramCache]: Analyzing trace with hash 114485, now seen corresponding path program 371 times [2022-03-01 17:08:46,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:46,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578395003] [2022-03-01 17:08:46,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:46,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:46,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:46,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:46,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578395003] [2022-03-01 17:08:46,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578395003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:46,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:46,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:46,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051760303] [2022-03-01 17:08:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:46,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:46,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:46,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:46,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:46,828 INFO L87 Difference]: Start difference. First operand 1386 states and 5469 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:46,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:46,975 INFO L93 Difference]: Finished difference Result 2974 states and 10954 transitions. [2022-03-01 17:08:46,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:46,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:46,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:46,983 INFO L225 Difference]: With dead ends: 2974 [2022-03-01 17:08:46,983 INFO L226 Difference]: Without dead ends: 2791 [2022-03-01 17:08:46,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:46,983 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:46,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 169 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-03-01 17:08:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1430. [2022-03-01 17:08:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1429 states have (on average 3.933519944016795) internal successors, (5621), 1429 states have internal predecessors, (5621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 5621 transitions. [2022-03-01 17:08:47,018 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 5621 transitions. Word has length 25 [2022-03-01 17:08:47,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:47,018 INFO L470 AbstractCegarLoop]: Abstraction has 1430 states and 5621 transitions. [2022-03-01 17:08:47,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 5621 transitions. [2022-03-01 17:08:47,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:47,020 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:47,020 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] [2022-03-01 17:08:47,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-01 17:08:47,021 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:47,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1004217453, now seen corresponding path program 372 times [2022-03-01 17:08:47,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:47,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428190838] [2022-03-01 17:08:47,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:47,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:47,190 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:47,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428190838] [2022-03-01 17:08:47,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428190838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:47,190 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:47,190 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:47,190 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953018137] [2022-03-01 17:08:47,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:47,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:47,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:47,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:47,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:47,190 INFO L87 Difference]: Start difference. First operand 1430 states and 5621 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:47,295 INFO L93 Difference]: Finished difference Result 3013 states and 11057 transitions. [2022-03-01 17:08:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:47,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:47,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:47,301 INFO L225 Difference]: With dead ends: 3013 [2022-03-01 17:08:47,302 INFO L226 Difference]: Without dead ends: 2731 [2022-03-01 17:08:47,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:47,302 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:47,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 162 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-03-01 17:08:47,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 1370. [2022-03-01 17:08:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.953981008035062) internal successors, (5413), 1369 states have internal predecessors, (5413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5413 transitions. [2022-03-01 17:08:47,328 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5413 transitions. Word has length 25 [2022-03-01 17:08:47,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:47,328 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5413 transitions. [2022-03-01 17:08:47,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5413 transitions. [2022-03-01 17:08:47,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:47,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:47,330 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] [2022-03-01 17:08:47,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-01 17:08:47,330 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:47,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:47,330 INFO L85 PathProgramCache]: Analyzing trace with hash 461951703, now seen corresponding path program 373 times [2022-03-01 17:08:47,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:47,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182300668] [2022-03-01 17:08:47,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:47,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:47,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:47,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182300668] [2022-03-01 17:08:47,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182300668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:47,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:47,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:47,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094623695] [2022-03-01 17:08:47,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:47,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:47,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:47,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:47,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:47,449 INFO L87 Difference]: Start difference. First operand 1370 states and 5413 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:47,548 INFO L93 Difference]: Finished difference Result 2788 states and 10268 transitions. [2022-03-01 17:08:47,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:47,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:47,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:47,555 INFO L225 Difference]: With dead ends: 2788 [2022-03-01 17:08:47,555 INFO L226 Difference]: Without dead ends: 2629 [2022-03-01 17:08:47,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:47,555 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 99 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:47,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 160 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2022-03-01 17:08:47,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1394. [2022-03-01 17:08:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.946159368269921) internal successors, (5497), 1393 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5497 transitions. [2022-03-01 17:08:47,581 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5497 transitions. Word has length 25 [2022-03-01 17:08:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:47,581 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5497 transitions. [2022-03-01 17:08:47,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5497 transitions. [2022-03-01 17:08:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:47,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:47,583 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] [2022-03-01 17:08:47,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-01 17:08:47,583 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:47,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:47,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1470249687, now seen corresponding path program 374 times [2022-03-01 17:08:47,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:47,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106317244] [2022-03-01 17:08:47,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:47,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:47,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:47,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106317244] [2022-03-01 17:08:47,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106317244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:47,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:47,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:47,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576850409] [2022-03-01 17:08:47,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:47,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:47,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:47,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:47,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:47,678 INFO L87 Difference]: Start difference. First operand 1394 states and 5497 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:47,772 INFO L93 Difference]: Finished difference Result 2816 states and 10356 transitions. [2022-03-01 17:08:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:47,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:47,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:47,778 INFO L225 Difference]: With dead ends: 2816 [2022-03-01 17:08:47,778 INFO L226 Difference]: Without dead ends: 2613 [2022-03-01 17:08:47,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:47,779 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 100 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:47,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 152 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:47,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2022-03-01 17:08:47,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1378. [2022-03-01 17:08:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.9513435003631083) internal successors, (5441), 1377 states have internal predecessors, (5441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5441 transitions. [2022-03-01 17:08:47,815 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5441 transitions. Word has length 25 [2022-03-01 17:08:47,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:47,815 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5441 transitions. [2022-03-01 17:08:47,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5441 transitions. [2022-03-01 17:08:47,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:47,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:47,817 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] [2022-03-01 17:08:47,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-01 17:08:47,818 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:47,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:47,818 INFO L85 PathProgramCache]: Analyzing trace with hash -384845259, now seen corresponding path program 375 times [2022-03-01 17:08:47,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:47,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856373577] [2022-03-01 17:08:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:47,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:47,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:47,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:47,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856373577] [2022-03-01 17:08:47,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856373577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:47,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:47,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:47,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11326904] [2022-03-01 17:08:47,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:47,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:47,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:47,908 INFO L87 Difference]: Start difference. First operand 1378 states and 5441 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:47,975 INFO L93 Difference]: Finished difference Result 2784 states and 10248 transitions. [2022-03-01 17:08:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:47,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:47,981 INFO L225 Difference]: With dead ends: 2784 [2022-03-01 17:08:47,982 INFO L226 Difference]: Without dead ends: 2625 [2022-03-01 17:08:47,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:47,982 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 120 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:47,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 138 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:47,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2022-03-01 17:08:48,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 1394. [2022-03-01 17:08:48,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.940416367552046) internal successors, (5489), 1393 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5489 transitions. [2022-03-01 17:08:48,009 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5489 transitions. Word has length 25 [2022-03-01 17:08:48,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,009 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5489 transitions. [2022-03-01 17:08:48,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5489 transitions. [2022-03-01 17:08:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:48,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,011 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] [2022-03-01 17:08:48,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-01 17:08:48,011 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash -414704937, now seen corresponding path program 376 times [2022-03-01 17:08:48,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415726624] [2022-03-01 17:08:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:48,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:48,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415726624] [2022-03-01 17:08:48,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415726624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:48,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:48,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:48,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567819004] [2022-03-01 17:08:48,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:48,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:48,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:48,087 INFO L87 Difference]: Start difference. First operand 1394 states and 5489 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:48,170 INFO L93 Difference]: Finished difference Result 2808 states and 10324 transitions. [2022-03-01 17:08:48,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:48,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:48,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:48,177 INFO L225 Difference]: With dead ends: 2808 [2022-03-01 17:08:48,177 INFO L226 Difference]: Without dead ends: 2609 [2022-03-01 17:08:48,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:48,177 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:48,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 161 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:48,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2022-03-01 17:08:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 1378. [2022-03-01 17:08:48,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.945533769063181) internal successors, (5433), 1377 states have internal predecessors, (5433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5433 transitions. [2022-03-01 17:08:48,204 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5433 transitions. Word has length 25 [2022-03-01 17:08:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,205 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5433 transitions. [2022-03-01 17:08:48,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5433 transitions. [2022-03-01 17:08:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:48,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,207 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] [2022-03-01 17:08:48,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-01 17:08:48,207 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:48,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1519817431, now seen corresponding path program 377 times [2022-03-01 17:08:48,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423406544] [2022-03-01 17:08:48,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:48,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:48,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:48,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423406544] [2022-03-01 17:08:48,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423406544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:48,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:48,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:48,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046508699] [2022-03-01 17:08:48,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:48,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:48,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:48,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:48,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:48,281 INFO L87 Difference]: Start difference. First operand 1378 states and 5433 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:48,366 INFO L93 Difference]: Finished difference Result 2852 states and 10500 transitions. [2022-03-01 17:08:48,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:48,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:48,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:48,372 INFO L225 Difference]: With dead ends: 2852 [2022-03-01 17:08:48,372 INFO L226 Difference]: Without dead ends: 2665 [2022-03-01 17:08:48,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:48,372 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 99 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:48,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 169 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-03-01 17:08:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1406. [2022-03-01 17:08:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 3.929537366548043) internal successors, (5521), 1405 states have internal predecessors, (5521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 5521 transitions. [2022-03-01 17:08:48,399 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 5521 transitions. Word has length 25 [2022-03-01 17:08:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,399 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 5521 transitions. [2022-03-01 17:08:48,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 5521 transitions. [2022-03-01 17:08:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:48,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,401 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] [2022-03-01 17:08:48,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-01 17:08:48,401 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:48,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,402 INFO L85 PathProgramCache]: Analyzing trace with hash -523519563, now seen corresponding path program 378 times [2022-03-01 17:08:48,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21894962] [2022-03-01 17:08:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:48,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:48,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21894962] [2022-03-01 17:08:48,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21894962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:48,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:48,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:48,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455770765] [2022-03-01 17:08:48,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:48,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:48,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:48,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:48,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:48,482 INFO L87 Difference]: Start difference. First operand 1406 states and 5521 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:48,569 INFO L93 Difference]: Finished difference Result 2848 states and 10460 transitions. [2022-03-01 17:08:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:48,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:48,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:48,575 INFO L225 Difference]: With dead ends: 2848 [2022-03-01 17:08:48,575 INFO L226 Difference]: Without dead ends: 2629 [2022-03-01 17:08:48,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:48,575 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 93 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:48,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 176 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2022-03-01 17:08:48,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 1370. [2022-03-01 17:08:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9510591672753836) internal successors, (5409), 1369 states have internal predecessors, (5409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5409 transitions. [2022-03-01 17:08:48,598 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5409 transitions. Word has length 25 [2022-03-01 17:08:48,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,598 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5409 transitions. [2022-03-01 17:08:48,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5409 transitions. [2022-03-01 17:08:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:48,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,600 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] [2022-03-01 17:08:48,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-01 17:08:48,600 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:48,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,601 INFO L85 PathProgramCache]: Analyzing trace with hash 426846935, now seen corresponding path program 379 times [2022-03-01 17:08:48,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230268406] [2022-03-01 17:08:48,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:48,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:48,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:48,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230268406] [2022-03-01 17:08:48,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230268406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:48,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:48,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:48,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198574157] [2022-03-01 17:08:48,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:48,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:48,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:48,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:48,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:48,690 INFO L87 Difference]: Start difference. First operand 1370 states and 5409 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:48,777 INFO L93 Difference]: Finished difference Result 2987 states and 11039 transitions. [2022-03-01 17:08:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:48,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:48,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:48,784 INFO L225 Difference]: With dead ends: 2987 [2022-03-01 17:08:48,784 INFO L226 Difference]: Without dead ends: 2800 [2022-03-01 17:08:48,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:48,784 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:48,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 161 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2022-03-01 17:08:48,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 1420. [2022-03-01 17:08:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1419 states have (on average 3.9450317124735728) internal successors, (5598), 1419 states have internal predecessors, (5598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 5598 transitions. [2022-03-01 17:08:48,809 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 5598 transitions. Word has length 25 [2022-03-01 17:08:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,809 INFO L470 AbstractCegarLoop]: Abstraction has 1420 states and 5598 transitions. [2022-03-01 17:08:48,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 5598 transitions. [2022-03-01 17:08:48,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:48,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,812 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] [2022-03-01 17:08:48,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-01 17:08:48,812 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:48,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1616490059, now seen corresponding path program 380 times [2022-03-01 17:08:48,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653865807] [2022-03-01 17:08:48,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:48,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:48,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653865807] [2022-03-01 17:08:48,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653865807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:48,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:48,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:48,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150347679] [2022-03-01 17:08:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:48,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:48,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:48,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:48,887 INFO L87 Difference]: Start difference. First operand 1420 states and 5598 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:48,960 INFO L93 Difference]: Finished difference Result 2983 states and 10999 transitions. [2022-03-01 17:08:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:48,966 INFO L225 Difference]: With dead ends: 2983 [2022-03-01 17:08:48,967 INFO L226 Difference]: Without dead ends: 2772 [2022-03-01 17:08:48,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:48,967 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:48,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 142 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:48,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2022-03-01 17:08:48,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1392. [2022-03-01 17:08:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9511143062544933) internal successors, (5496), 1391 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5496 transitions. [2022-03-01 17:08:48,993 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5496 transitions. Word has length 25 [2022-03-01 17:08:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:48,993 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5496 transitions. [2022-03-01 17:08:48,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5496 transitions. [2022-03-01 17:08:48,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:48,995 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:48,995 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] [2022-03-01 17:08:48,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-01 17:08:48,995 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:48,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:48,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1631496117, now seen corresponding path program 381 times [2022-03-01 17:08:48,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:48,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503931022] [2022-03-01 17:08:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:48,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:49,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:49,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503931022] [2022-03-01 17:08:49,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503931022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:49,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:49,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:49,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667865889] [2022-03-01 17:08:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:49,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:49,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:49,071 INFO L87 Difference]: Start difference. First operand 1392 states and 5496 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:49,156 INFO L93 Difference]: Finished difference Result 3044 states and 11227 transitions. [2022-03-01 17:08:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:49,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:49,163 INFO L225 Difference]: With dead ends: 3044 [2022-03-01 17:08:49,163 INFO L226 Difference]: Without dead ends: 2857 [2022-03-01 17:08:49,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:49,163 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 117 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:49,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 144 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:49,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2022-03-01 17:08:49,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1438. [2022-03-01 17:08:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1438 states, 1437 states have (on average 3.9338900487125956) internal successors, (5653), 1437 states have internal predecessors, (5653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 5653 transitions. [2022-03-01 17:08:49,200 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 5653 transitions. Word has length 25 [2022-03-01 17:08:49,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:49,200 INFO L470 AbstractCegarLoop]: Abstraction has 1438 states and 5653 transitions. [2022-03-01 17:08:49,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 5653 transitions. [2022-03-01 17:08:49,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:49,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:49,202 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] [2022-03-01 17:08:49,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-01 17:08:49,202 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:49,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1712385973, now seen corresponding path program 382 times [2022-03-01 17:08:49,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:49,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51736346] [2022-03-01 17:08:49,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:49,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:49,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:49,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:49,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51736346] [2022-03-01 17:08:49,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51736346] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:49,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:49,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:49,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349703677] [2022-03-01 17:08:49,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:49,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:49,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:49,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:49,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:49,297 INFO L87 Difference]: Start difference. First operand 1438 states and 5653 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:49,372 INFO L93 Difference]: Finished difference Result 3079 states and 11316 transitions. [2022-03-01 17:08:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:49,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:49,378 INFO L225 Difference]: With dead ends: 3079 [2022-03-01 17:08:49,378 INFO L226 Difference]: Without dead ends: 2811 [2022-03-01 17:08:49,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:49,378 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:49,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2022-03-01 17:08:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1392. [2022-03-01 17:08:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 3.9352983465133) internal successors, (5474), 1391 states have internal predecessors, (5474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 5474 transitions. [2022-03-01 17:08:49,403 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 5474 transitions. Word has length 25 [2022-03-01 17:08:49,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:49,403 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 5474 transitions. [2022-03-01 17:08:49,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 5474 transitions. [2022-03-01 17:08:49,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:49,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:49,405 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] [2022-03-01 17:08:49,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-01 17:08:49,405 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:49,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:49,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1681123565, now seen corresponding path program 383 times [2022-03-01 17:08:49,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:49,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683989968] [2022-03-01 17:08:49,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:49,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:49,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:49,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683989968] [2022-03-01 17:08:49,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683989968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:49,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:49,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:49,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713356662] [2022-03-01 17:08:49,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:49,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:49,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:49,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:49,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:49,480 INFO L87 Difference]: Start difference. First operand 1392 states and 5474 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:49,559 INFO L93 Difference]: Finished difference Result 3034 states and 11174 transitions. [2022-03-01 17:08:49,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:49,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:49,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:49,565 INFO L225 Difference]: With dead ends: 3034 [2022-03-01 17:08:49,565 INFO L226 Difference]: Without dead ends: 2851 [2022-03-01 17:08:49,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:49,565 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:49,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 156 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2022-03-01 17:08:49,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 1436. [2022-03-01 17:08:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1435 states have (on average 3.9205574912891987) internal successors, (5626), 1435 states have internal predecessors, (5626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 5626 transitions. [2022-03-01 17:08:49,590 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 5626 transitions. Word has length 25 [2022-03-01 17:08:49,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:49,590 INFO L470 AbstractCegarLoop]: Abstraction has 1436 states and 5626 transitions. [2022-03-01 17:08:49,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 5626 transitions. [2022-03-01 17:08:49,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:49,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:49,592 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] [2022-03-01 17:08:49,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-01 17:08:49,592 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1544324725, now seen corresponding path program 384 times [2022-03-01 17:08:49,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:49,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225933290] [2022-03-01 17:08:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:49,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:49,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:49,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225933290] [2022-03-01 17:08:49,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225933290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:49,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:49,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:49,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254410589] [2022-03-01 17:08:49,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:49,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:49,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:49,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:49,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:49,669 INFO L87 Difference]: Start difference. First operand 1436 states and 5626 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:49,742 INFO L93 Difference]: Finished difference Result 3073 states and 11277 transitions. [2022-03-01 17:08:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:49,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:49,748 INFO L225 Difference]: With dead ends: 3073 [2022-03-01 17:08:49,748 INFO L226 Difference]: Without dead ends: 2777 [2022-03-01 17:08:49,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:49,748 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 98 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:49,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 154 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:49,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2022-03-01 17:08:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 1362. [2022-03-01 17:08:49,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9566495224099927) internal successors, (5385), 1361 states have internal predecessors, (5385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5385 transitions. [2022-03-01 17:08:49,773 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5385 transitions. Word has length 25 [2022-03-01 17:08:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:49,773 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5385 transitions. [2022-03-01 17:08:49,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5385 transitions. [2022-03-01 17:08:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:49,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:49,775 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] [2022-03-01 17:08:49,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-01 17:08:49,775 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:49,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:49,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1460770549, now seen corresponding path program 385 times [2022-03-01 17:08:49,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:49,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170093155] [2022-03-01 17:08:49,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:49,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:49,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:49,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170093155] [2022-03-01 17:08:49,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170093155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:49,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:49,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:49,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217233154] [2022-03-01 17:08:49,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:49,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:49,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:49,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:49,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:49,909 INFO L87 Difference]: Start difference. First operand 1362 states and 5385 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:49,984 INFO L93 Difference]: Finished difference Result 2878 states and 10584 transitions. [2022-03-01 17:08:49,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:49,991 INFO L225 Difference]: With dead ends: 2878 [2022-03-01 17:08:49,991 INFO L226 Difference]: Without dead ends: 2719 [2022-03-01 17:08:49,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:49,991 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:49,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 157 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-03-01 17:08:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 1394. [2022-03-01 17:08:50,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.946159368269921) internal successors, (5497), 1393 states have internal predecessors, (5497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5497 transitions. [2022-03-01 17:08:50,022 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5497 transitions. Word has length 25 [2022-03-01 17:08:50,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:50,022 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5497 transitions. [2022-03-01 17:08:50,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5497 transitions. [2022-03-01 17:08:50,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:50,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:50,025 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] [2022-03-01 17:08:50,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-01 17:08:50,025 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:50,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:50,025 INFO L85 PathProgramCache]: Analyzing trace with hash 452472565, now seen corresponding path program 386 times [2022-03-01 17:08:50,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:50,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829626740] [2022-03-01 17:08:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:50,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:50,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:50,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829626740] [2022-03-01 17:08:50,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829626740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:50,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:50,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:50,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016179018] [2022-03-01 17:08:50,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:50,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:50,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:50,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:50,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:50,134 INFO L87 Difference]: Start difference. First operand 1394 states and 5497 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:50,237 INFO L93 Difference]: Finished difference Result 2941 states and 10791 transitions. [2022-03-01 17:08:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:50,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:50,245 INFO L225 Difference]: With dead ends: 2941 [2022-03-01 17:08:50,245 INFO L226 Difference]: Without dead ends: 2687 [2022-03-01 17:08:50,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:50,246 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 129 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:50,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 140 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:50,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-03-01 17:08:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1362. [2022-03-01 17:08:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9448934606906687) internal successors, (5369), 1361 states have internal predecessors, (5369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5369 transitions. [2022-03-01 17:08:50,273 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5369 transitions. Word has length 25 [2022-03-01 17:08:50,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:50,273 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5369 transitions. [2022-03-01 17:08:50,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5369 transitions. [2022-03-01 17:08:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:50,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:50,276 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] [2022-03-01 17:08:50,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-01 17:08:50,276 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1845163241, now seen corresponding path program 387 times [2022-03-01 17:08:50,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:50,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108480750] [2022-03-01 17:08:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:50,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:50,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108480750] [2022-03-01 17:08:50,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108480750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:50,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:50,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:50,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792391353] [2022-03-01 17:08:50,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:50,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:50,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:50,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:50,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:50,398 INFO L87 Difference]: Start difference. First operand 1362 states and 5369 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:50,478 INFO L93 Difference]: Finished difference Result 2827 states and 10385 transitions. [2022-03-01 17:08:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:50,483 INFO L225 Difference]: With dead ends: 2827 [2022-03-01 17:08:50,483 INFO L226 Difference]: Without dead ends: 2668 [2022-03-01 17:08:50,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:50,483 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:50,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 168 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2022-03-01 17:08:50,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 1378. [2022-03-01 17:08:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.933914306463326) internal successors, (5417), 1377 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5417 transitions. [2022-03-01 17:08:50,508 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5417 transitions. Word has length 25 [2022-03-01 17:08:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:50,508 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5417 transitions. [2022-03-01 17:08:50,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5417 transitions. [2022-03-01 17:08:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:50,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:50,511 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] [2022-03-01 17:08:50,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-01 17:08:50,511 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash -836865257, now seen corresponding path program 388 times [2022-03-01 17:08:50,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:50,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817141835] [2022-03-01 17:08:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:50,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:50,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:50,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:50,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817141835] [2022-03-01 17:08:50,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817141835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:50,648 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:50,648 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:50,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504194848] [2022-03-01 17:08:50,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:50,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:50,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:50,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:50,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:50,648 INFO L87 Difference]: Start difference. First operand 1378 states and 5417 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:50,750 INFO L93 Difference]: Finished difference Result 2855 states and 10473 transitions. [2022-03-01 17:08:50,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:50,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:50,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:50,756 INFO L225 Difference]: With dead ends: 2855 [2022-03-01 17:08:50,756 INFO L226 Difference]: Without dead ends: 2652 [2022-03-01 17:08:50,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:50,756 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:50,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2022-03-01 17:08:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 1362. [2022-03-01 17:08:50,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9390154298310067) internal successors, (5361), 1361 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5361 transitions. [2022-03-01 17:08:50,795 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5361 transitions. Word has length 25 [2022-03-01 17:08:50,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:50,795 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5361 transitions. [2022-03-01 17:08:50,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5361 transitions. [2022-03-01 17:08:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:50,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:50,797 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] [2022-03-01 17:08:50,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-01 17:08:50,797 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:50,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash 851381015, now seen corresponding path program 389 times [2022-03-01 17:08:50,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:50,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630869973] [2022-03-01 17:08:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:50,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:50,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630869973] [2022-03-01 17:08:50,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630869973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:50,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:50,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:50,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125800472] [2022-03-01 17:08:50,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:50,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:50,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:50,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:50,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:50,875 INFO L87 Difference]: Start difference. First operand 1362 states and 5361 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:50,948 INFO L93 Difference]: Finished difference Result 2948 states and 10827 transitions. [2022-03-01 17:08:50,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:50,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:50,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:50,954 INFO L225 Difference]: With dead ends: 2948 [2022-03-01 17:08:50,954 INFO L226 Difference]: Without dead ends: 2761 [2022-03-01 17:08:50,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:50,955 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 117 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:50,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 141 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2022-03-01 17:08:50,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 1408. [2022-03-01 17:08:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1407 states have (on average 3.92181947405828) internal successors, (5518), 1407 states have internal predecessors, (5518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 5518 transitions. [2022-03-01 17:08:50,982 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 5518 transitions. Word has length 25 [2022-03-01 17:08:50,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:50,982 INFO L470 AbstractCegarLoop]: Abstraction has 1408 states and 5518 transitions. [2022-03-01 17:08:50,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 5518 transitions. [2022-03-01 17:08:50,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:50,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:50,984 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] [2022-03-01 17:08:50,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-01 17:08:50,984 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash 498241525, now seen corresponding path program 390 times [2022-03-01 17:08:50,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:50,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653727450] [2022-03-01 17:08:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:50,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:51,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:51,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:51,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653727450] [2022-03-01 17:08:51,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653727450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:51,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:51,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:51,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949254518] [2022-03-01 17:08:51,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:51,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:51,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:51,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:51,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:51,069 INFO L87 Difference]: Start difference. First operand 1408 states and 5518 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:51,159 INFO L93 Difference]: Finished difference Result 2983 states and 10916 transitions. [2022-03-01 17:08:51,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:51,160 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:51,165 INFO L225 Difference]: With dead ends: 2983 [2022-03-01 17:08:51,165 INFO L226 Difference]: Without dead ends: 2699 [2022-03-01 17:08:51,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:51,166 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:51,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 166 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2022-03-01 17:08:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 1346. [2022-03-01 17:08:51,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 3.9442379182156135) internal successors, (5305), 1345 states have internal predecessors, (5305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5305 transitions. [2022-03-01 17:08:51,192 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5305 transitions. Word has length 25 [2022-03-01 17:08:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:51,192 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5305 transitions. [2022-03-01 17:08:51,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5305 transitions. [2022-03-01 17:08:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:51,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:51,194 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] [2022-03-01 17:08:51,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-01 17:08:51,194 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash -461570315, now seen corresponding path program 391 times [2022-03-01 17:08:51,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:51,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986183679] [2022-03-01 17:08:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:51,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:51,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:51,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986183679] [2022-03-01 17:08:51,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986183679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:51,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:51,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:51,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567801268] [2022-03-01 17:08:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:51,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:51,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:51,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:51,270 INFO L87 Difference]: Start difference. First operand 1346 states and 5305 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:51,339 INFO L93 Difference]: Finished difference Result 2828 states and 10385 transitions. [2022-03-01 17:08:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:51,346 INFO L225 Difference]: With dead ends: 2828 [2022-03-01 17:08:51,346 INFO L226 Difference]: Without dead ends: 2669 [2022-03-01 17:08:51,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:51,347 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 126 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:51,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 136 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-03-01 17:08:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 1394. [2022-03-01 17:08:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 3.940416367552046) internal successors, (5489), 1393 states have internal predecessors, (5489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 5489 transitions. [2022-03-01 17:08:51,374 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 5489 transitions. Word has length 25 [2022-03-01 17:08:51,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:51,374 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 5489 transitions. [2022-03-01 17:08:51,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 5489 transitions. [2022-03-01 17:08:51,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:51,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:51,376 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] [2022-03-01 17:08:51,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-01 17:08:51,376 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:51,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:51,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1469868299, now seen corresponding path program 392 times [2022-03-01 17:08:51,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:51,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766241353] [2022-03-01 17:08:51,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:51,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:51,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:51,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766241353] [2022-03-01 17:08:51,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766241353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:51,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:51,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:51,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518893814] [2022-03-01 17:08:51,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:51,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:51,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:51,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:51,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:51,453 INFO L87 Difference]: Start difference. First operand 1394 states and 5489 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:51,522 INFO L93 Difference]: Finished difference Result 2891 states and 10592 transitions. [2022-03-01 17:08:51,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:51,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:51,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:51,527 INFO L225 Difference]: With dead ends: 2891 [2022-03-01 17:08:51,527 INFO L226 Difference]: Without dead ends: 2637 [2022-03-01 17:08:51,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:51,528 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:51,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:51,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2022-03-01 17:08:51,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1362. [2022-03-01 17:08:51,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9390154298310067) internal successors, (5361), 1361 states have internal predecessors, (5361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5361 transitions. [2022-03-01 17:08:51,552 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5361 transitions. Word has length 25 [2022-03-01 17:08:51,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:51,552 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5361 transitions. [2022-03-01 17:08:51,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5361 transitions. [2022-03-01 17:08:51,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:51,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:51,554 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] [2022-03-01 17:08:51,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-01 17:08:51,554 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:51,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:51,554 INFO L85 PathProgramCache]: Analyzing trace with hash 578987701, now seen corresponding path program 393 times [2022-03-01 17:08:51,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:51,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089657358] [2022-03-01 17:08:51,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:51,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:51,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:51,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089657358] [2022-03-01 17:08:51,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089657358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:51,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:51,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:51,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837925509] [2022-03-01 17:08:51,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:51,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:51,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:51,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:51,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:51,632 INFO L87 Difference]: Start difference. First operand 1362 states and 5361 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:51,702 INFO L93 Difference]: Finished difference Result 2733 states and 10034 transitions. [2022-03-01 17:08:51,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:51,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:51,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:51,707 INFO L225 Difference]: With dead ends: 2733 [2022-03-01 17:08:51,707 INFO L226 Difference]: Without dead ends: 2574 [2022-03-01 17:08:51,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:51,707 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 107 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:51,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 147 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:51,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-03-01 17:08:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1378. [2022-03-01 17:08:51,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.9281045751633985) internal successors, (5409), 1377 states have internal predecessors, (5409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5409 transitions. [2022-03-01 17:08:51,732 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5409 transitions. Word has length 25 [2022-03-01 17:08:51,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:51,732 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5409 transitions. [2022-03-01 17:08:51,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5409 transitions. [2022-03-01 17:08:51,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:51,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:51,734 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] [2022-03-01 17:08:51,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-01 17:08:51,734 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1363284299, now seen corresponding path program 394 times [2022-03-01 17:08:51,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:51,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999628031] [2022-03-01 17:08:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:51,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:51,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:51,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999628031] [2022-03-01 17:08:51,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999628031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:51,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:51,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:51,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513761049] [2022-03-01 17:08:51,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:51,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:51,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:51,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:51,811 INFO L87 Difference]: Start difference. First operand 1378 states and 5409 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:51,890 INFO L93 Difference]: Finished difference Result 2621 states and 9697 transitions. [2022-03-01 17:08:51,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:51,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:51,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:51,895 INFO L225 Difference]: With dead ends: 2621 [2022-03-01 17:08:51,895 INFO L226 Difference]: Without dead ends: 2430 [2022-03-01 17:08:51,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:51,896 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 109 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:51,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 143 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-03-01 17:08:51,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 1362. [2022-03-01 17:08:51,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 3.9331373989713447) internal successors, (5353), 1361 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 5353 transitions. [2022-03-01 17:08:51,918 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 5353 transitions. Word has length 25 [2022-03-01 17:08:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:51,919 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 5353 transitions. [2022-03-01 17:08:51,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:51,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 5353 transitions. [2022-03-01 17:08:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:51,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:51,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:51,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-01 17:08:51,921 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:51,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash 324961973, now seen corresponding path program 395 times [2022-03-01 17:08:51,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:51,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746899526] [2022-03-01 17:08:51,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746899526] [2022-03-01 17:08:52,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746899526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:52,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367105647] [2022-03-01 17:08:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:52,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:52,003 INFO L87 Difference]: Start difference. First operand 1362 states and 5353 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:52,080 INFO L93 Difference]: Finished difference Result 2868 states and 10525 transitions. [2022-03-01 17:08:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:52,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:52,086 INFO L225 Difference]: With dead ends: 2868 [2022-03-01 17:08:52,086 INFO L226 Difference]: Without dead ends: 2693 [2022-03-01 17:08:52,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:52,086 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:52,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2022-03-01 17:08:52,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 1402. [2022-03-01 17:08:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 3.9207708779443253) internal successors, (5493), 1401 states have internal predecessors, (5493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 5493 transitions. [2022-03-01 17:08:52,111 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 5493 transitions. Word has length 25 [2022-03-01 17:08:52,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:52,111 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 5493 transitions. [2022-03-01 17:08:52,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 5493 transitions. [2022-03-01 17:08:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:52,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:52,113 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] [2022-03-01 17:08:52,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-01 17:08:52,114 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:52,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1330562413, now seen corresponding path program 396 times [2022-03-01 17:08:52,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:52,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323253702] [2022-03-01 17:08:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:52,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323253702] [2022-03-01 17:08:52,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323253702] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:52,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451217671] [2022-03-01 17:08:52,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:52,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:52,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:52,198 INFO L87 Difference]: Start difference. First operand 1402 states and 5493 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:52,278 INFO L93 Difference]: Finished difference Result 2820 states and 10325 transitions. [2022-03-01 17:08:52,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:52,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:52,283 INFO L225 Difference]: With dead ends: 2820 [2022-03-01 17:08:52,283 INFO L226 Difference]: Without dead ends: 2542 [2022-03-01 17:08:52,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:52,283 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 101 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:52,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 148 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:52,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2022-03-01 17:08:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 1346. [2022-03-01 17:08:52,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 3.9382899628252788) internal successors, (5297), 1345 states have internal predecessors, (5297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5297 transitions. [2022-03-01 17:08:52,306 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5297 transitions. Word has length 25 [2022-03-01 17:08:52,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:52,306 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5297 transitions. [2022-03-01 17:08:52,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5297 transitions. [2022-03-01 17:08:52,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:52,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:52,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:52,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-01 17:08:52,308 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:52,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:52,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1623213481, now seen corresponding path program 397 times [2022-03-01 17:08:52,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:52,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082529008] [2022-03-01 17:08:52,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:52,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082529008] [2022-03-01 17:08:52,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082529008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:52,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936018455] [2022-03-01 17:08:52,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:52,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:52,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:52,384 INFO L87 Difference]: Start difference. First operand 1346 states and 5297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:52,456 INFO L93 Difference]: Finished difference Result 2718 states and 9975 transitions. [2022-03-01 17:08:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:52,461 INFO L225 Difference]: With dead ends: 2718 [2022-03-01 17:08:52,461 INFO L226 Difference]: Without dead ends: 2559 [2022-03-01 17:08:52,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:52,461 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 105 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:52,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 163 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:52,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-03-01 17:08:52,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 1370. [2022-03-01 17:08:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9306062819576333) internal successors, (5381), 1369 states have internal predecessors, (5381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5381 transitions. [2022-03-01 17:08:52,486 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5381 transitions. Word has length 25 [2022-03-01 17:08:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:52,486 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5381 transitions. [2022-03-01 17:08:52,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5381 transitions. [2022-03-01 17:08:52,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:52,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:52,488 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] [2022-03-01 17:08:52,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-01 17:08:52,489 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash -614915497, now seen corresponding path program 398 times [2022-03-01 17:08:52,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:52,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819030305] [2022-03-01 17:08:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:52,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819030305] [2022-03-01 17:08:52,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819030305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:52,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695637077] [2022-03-01 17:08:52,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:52,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:52,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:52,566 INFO L87 Difference]: Start difference. First operand 1370 states and 5381 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:52,645 INFO L93 Difference]: Finished difference Result 2746 states and 10063 transitions. [2022-03-01 17:08:52,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:52,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:52,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:52,650 INFO L225 Difference]: With dead ends: 2746 [2022-03-01 17:08:52,650 INFO L226 Difference]: Without dead ends: 2543 [2022-03-01 17:08:52,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:52,650 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 107 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:52,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 155 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:52,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2022-03-01 17:08:52,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 1354. [2022-03-01 17:08:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 3.9356984478935697) internal successors, (5325), 1353 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5325 transitions. [2022-03-01 17:08:52,674 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5325 transitions. Word has length 25 [2022-03-01 17:08:52,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:52,675 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5325 transitions. [2022-03-01 17:08:52,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5325 transitions. [2022-03-01 17:08:52,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:52,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:52,677 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] [2022-03-01 17:08:52,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-01 17:08:52,677 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash 555674165, now seen corresponding path program 399 times [2022-03-01 17:08:52,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:52,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777222297] [2022-03-01 17:08:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777222297] [2022-03-01 17:08:52,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777222297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:52,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222571532] [2022-03-01 17:08:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:52,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:52,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:52,753 INFO L87 Difference]: Start difference. First operand 1354 states and 5325 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:52,823 INFO L93 Difference]: Finished difference Result 2674 states and 9815 transitions. [2022-03-01 17:08:52,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:52,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:52,827 INFO L225 Difference]: With dead ends: 2674 [2022-03-01 17:08:52,828 INFO L226 Difference]: Without dead ends: 2515 [2022-03-01 17:08:52,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:52,828 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:52,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2022-03-01 17:08:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 1370. [2022-03-01 17:08:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9247626004382763) internal successors, (5373), 1369 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5373 transitions. [2022-03-01 17:08:52,851 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5373 transitions. Word has length 25 [2022-03-01 17:08:52,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:52,851 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5373 transitions. [2022-03-01 17:08:52,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5373 transitions. [2022-03-01 17:08:52,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:52,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:52,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:52,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-01 17:08:52,853 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:52,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:52,853 INFO L85 PathProgramCache]: Analyzing trace with hash -89857449, now seen corresponding path program 400 times [2022-03-01 17:08:52,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:52,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231841867] [2022-03-01 17:08:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:52,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:52,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:52,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231841867] [2022-03-01 17:08:52,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231841867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:52,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:52,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:52,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205611263] [2022-03-01 17:08:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:52,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:52,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:52,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:52,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:52,929 INFO L87 Difference]: Start difference. First operand 1370 states and 5373 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,003 INFO L93 Difference]: Finished difference Result 2562 states and 9478 transitions. [2022-03-01 17:08:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,008 INFO L225 Difference]: With dead ends: 2562 [2022-03-01 17:08:53,008 INFO L226 Difference]: Without dead ends: 2371 [2022-03-01 17:08:53,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:53,008 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-03-01 17:08:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1354. [2022-03-01 17:08:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 3.9297856614929785) internal successors, (5317), 1353 states have internal predecessors, (5317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5317 transitions. [2022-03-01 17:08:53,032 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5317 transitions. Word has length 25 [2022-03-01 17:08:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:53,032 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5317 transitions. [2022-03-01 17:08:53,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5317 transitions. [2022-03-01 17:08:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:53,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:53,034 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] [2022-03-01 17:08:53,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-01 17:08:53,034 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:53,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:53,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1172466263, now seen corresponding path program 401 times [2022-03-01 17:08:53,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:53,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912900592] [2022-03-01 17:08:53,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:53,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:53,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:53,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912900592] [2022-03-01 17:08:53,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912900592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:53,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:53,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:53,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347021758] [2022-03-01 17:08:53,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:53,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:53,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:53,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:53,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:53,110 INFO L87 Difference]: Start difference. First operand 1354 states and 5317 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,184 INFO L93 Difference]: Finished difference Result 2710 states and 9947 transitions. [2022-03-01 17:08:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:53,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,189 INFO L225 Difference]: With dead ends: 2710 [2022-03-01 17:08:53,189 INFO L226 Difference]: Without dead ends: 2523 [2022-03-01 17:08:53,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:53,189 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 142 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2022-03-01 17:08:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 1378. [2022-03-01 17:08:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1378 states, 1377 states have (on average 3.916485112563544) internal successors, (5393), 1377 states have internal predecessors, (5393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 5393 transitions. [2022-03-01 17:08:53,212 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 5393 transitions. Word has length 25 [2022-03-01 17:08:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:53,212 INFO L470 AbstractCegarLoop]: Abstraction has 1378 states and 5393 transitions. [2022-03-01 17:08:53,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 5393 transitions. [2022-03-01 17:08:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:53,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:53,214 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] [2022-03-01 17:08:53,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-01 17:08:53,214 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:53,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:53,215 INFO L85 PathProgramCache]: Analyzing trace with hash -219678283, now seen corresponding path program 402 times [2022-03-01 17:08:53,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:53,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302853714] [2022-03-01 17:08:53,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:53,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:53,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:53,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302853714] [2022-03-01 17:08:53,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302853714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:53,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:53,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:53,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835153440] [2022-03-01 17:08:53,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:53,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:53,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:53,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:53,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:53,292 INFO L87 Difference]: Start difference. First operand 1378 states and 5393 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,368 INFO L93 Difference]: Finished difference Result 2570 states and 9498 transitions. [2022-03-01 17:08:53,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:53,368 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,373 INFO L225 Difference]: With dead ends: 2570 [2022-03-01 17:08:53,373 INFO L226 Difference]: Without dead ends: 2363 [2022-03-01 17:08:53,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:53,373 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 149 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:53,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2363 states. [2022-03-01 17:08:53,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2363 to 1346. [2022-03-01 17:08:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1345 states have (on average 3.9353159851301114) internal successors, (5293), 1345 states have internal predecessors, (5293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 5293 transitions. [2022-03-01 17:08:53,396 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 5293 transitions. Word has length 25 [2022-03-01 17:08:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:53,396 INFO L470 AbstractCegarLoop]: Abstraction has 1346 states and 5293 transitions. [2022-03-01 17:08:53,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 5293 transitions. [2022-03-01 17:08:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:53,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:53,398 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] [2022-03-01 17:08:53,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-01 17:08:53,398 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash 79495767, now seen corresponding path program 403 times [2022-03-01 17:08:53,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:53,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242934884] [2022-03-01 17:08:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:53,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:53,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242934884] [2022-03-01 17:08:53,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242934884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:53,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:53,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:53,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240720535] [2022-03-01 17:08:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:53,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:53,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:53,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:53,522 INFO L87 Difference]: Start difference. First operand 1346 states and 5293 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,605 INFO L93 Difference]: Finished difference Result 2915 states and 10741 transitions. [2022-03-01 17:08:53,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:53,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:53,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,611 INFO L225 Difference]: With dead ends: 2915 [2022-03-01 17:08:53,611 INFO L226 Difference]: Without dead ends: 2728 [2022-03-01 17:08:53,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:53,611 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 130 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 131 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:53,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2022-03-01 17:08:53,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1390. [2022-03-01 17:08:53,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 3.931605471562275) internal successors, (5461), 1389 states have internal predecessors, (5461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 5461 transitions. [2022-03-01 17:08:53,637 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 5461 transitions. Word has length 25 [2022-03-01 17:08:53,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:53,637 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 5461 transitions. [2022-03-01 17:08:53,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 5461 transitions. [2022-03-01 17:08:53,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:53,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:53,639 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] [2022-03-01 17:08:53,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-01 17:08:53,639 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:53,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:53,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1312648779, now seen corresponding path program 404 times [2022-03-01 17:08:53,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:53,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742539849] [2022-03-01 17:08:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:53,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:53,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:53,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742539849] [2022-03-01 17:08:53,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742539849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:53,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:53,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:53,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816648976] [2022-03-01 17:08:53,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:53,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:53,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:53,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:53,711 INFO L87 Difference]: Start difference. First operand 1390 states and 5461 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,795 INFO L93 Difference]: Finished difference Result 2903 states and 10677 transitions. [2022-03-01 17:08:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,801 INFO L225 Difference]: With dead ends: 2903 [2022-03-01 17:08:53,801 INFO L226 Difference]: Without dead ends: 2704 [2022-03-01 17:08:53,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:53,801 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2022-03-01 17:08:53,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 1366. [2022-03-01 17:08:53,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1365 states have (on average 3.936263736263736) internal successors, (5373), 1365 states have internal predecessors, (5373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 5373 transitions. [2022-03-01 17:08:53,827 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 5373 transitions. Word has length 25 [2022-03-01 17:08:53,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:53,827 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 5373 transitions. [2022-03-01 17:08:53,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 5373 transitions. [2022-03-01 17:08:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:53,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:53,829 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] [2022-03-01 17:08:53,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-01 17:08:53,829 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:53,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1741539659, now seen corresponding path program 405 times [2022-03-01 17:08:53,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:53,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590203107] [2022-03-01 17:08:53,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:53,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:53,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590203107] [2022-03-01 17:08:53,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590203107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:53,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:53,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:53,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541147852] [2022-03-01 17:08:53,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:53,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:53,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:53,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:53,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:53,905 INFO L87 Difference]: Start difference. First operand 1366 states and 5373 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:53,981 INFO L93 Difference]: Finished difference Result 2938 states and 10788 transitions. [2022-03-01 17:08:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:53,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:53,987 INFO L225 Difference]: With dead ends: 2938 [2022-03-01 17:08:53,987 INFO L226 Difference]: Without dead ends: 2751 [2022-03-01 17:08:53,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:53,987 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:53,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 142 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2022-03-01 17:08:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 1412. [2022-03-01 17:08:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1411 states have (on average 3.919206236711552) internal successors, (5530), 1411 states have internal predecessors, (5530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 5530 transitions. [2022-03-01 17:08:54,013 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 5530 transitions. Word has length 25 [2022-03-01 17:08:54,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:54,013 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 5530 transitions. [2022-03-01 17:08:54,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 5530 transitions. [2022-03-01 17:08:54,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:54,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:54,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:54,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-01 17:08:54,015 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:54,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:54,015 INFO L85 PathProgramCache]: Analyzing trace with hash -372779211, now seen corresponding path program 406 times [2022-03-01 17:08:54,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:54,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959346058] [2022-03-01 17:08:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:54,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:54,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:54,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959346058] [2022-03-01 17:08:54,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959346058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:54,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:54,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:54,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557371605] [2022-03-01 17:08:54,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:54,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:54,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:54,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:54,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:54,089 INFO L87 Difference]: Start difference. First operand 1412 states and 5530 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:54,161 INFO L93 Difference]: Finished difference Result 2973 states and 10877 transitions. [2022-03-01 17:08:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:54,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:54,167 INFO L225 Difference]: With dead ends: 2973 [2022-03-01 17:08:54,167 INFO L226 Difference]: Without dead ends: 2705 [2022-03-01 17:08:54,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:54,167 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 123 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:54,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 144 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:54,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-03-01 17:08:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 1366. [2022-03-01 17:08:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1365 states have (on average 3.9216117216117214) internal successors, (5353), 1365 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 5353 transitions. [2022-03-01 17:08:54,191 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 5353 transitions. Word has length 25 [2022-03-01 17:08:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:54,191 INFO L470 AbstractCegarLoop]: Abstraction has 1366 states and 5353 transitions. [2022-03-01 17:08:54,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 5353 transitions. [2022-03-01 17:08:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:54,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:54,193 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] [2022-03-01 17:08:54,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-01 17:08:54,193 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:54,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1377282285, now seen corresponding path program 407 times [2022-03-01 17:08:54,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:54,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695012482] [2022-03-01 17:08:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:54,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:54,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:54,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695012482] [2022-03-01 17:08:54,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695012482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:54,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:54,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:54,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507086825] [2022-03-01 17:08:54,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:54,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:54,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:54,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:54,276 INFO L87 Difference]: Start difference. First operand 1366 states and 5353 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:54,349 INFO L93 Difference]: Finished difference Result 2908 states and 10665 transitions. [2022-03-01 17:08:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:54,349 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:54,355 INFO L225 Difference]: With dead ends: 2908 [2022-03-01 17:08:54,355 INFO L226 Difference]: Without dead ends: 2733 [2022-03-01 17:08:54,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:54,355 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 119 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:54,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 135 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2022-03-01 17:08:54,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 1406. [2022-03-01 17:08:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 1405 states have (on average 3.9096085409252668) internal successors, (5493), 1405 states have internal predecessors, (5493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 5493 transitions. [2022-03-01 17:08:54,381 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 5493 transitions. Word has length 25 [2022-03-01 17:08:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:54,381 INFO L470 AbstractCegarLoop]: Abstraction has 1406 states and 5493 transitions. [2022-03-01 17:08:54,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 5493 transitions. [2022-03-01 17:08:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:54,383 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:54,383 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] [2022-03-01 17:08:54,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-01 17:08:54,383 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:54,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1158930699, now seen corresponding path program 408 times [2022-03-01 17:08:54,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:54,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608271895] [2022-03-01 17:08:54,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:54,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:54,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:54,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608271895] [2022-03-01 17:08:54,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608271895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:54,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:54,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:54,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238505847] [2022-03-01 17:08:54,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:54,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:54,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:54,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:54,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:54,479 INFO L87 Difference]: Start difference. First operand 1406 states and 5493 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:54,566 INFO L93 Difference]: Finished difference Result 2860 states and 10465 transitions. [2022-03-01 17:08:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:54,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:54,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:54,573 INFO L225 Difference]: With dead ends: 2860 [2022-03-01 17:08:54,573 INFO L226 Difference]: Without dead ends: 2570 [2022-03-01 17:08:54,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:54,573 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:54,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 141 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-03-01 17:08:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 1338. [2022-03-01 17:08:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.9409124906507107) internal successors, (5269), 1337 states have internal predecessors, (5269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5269 transitions. [2022-03-01 17:08:54,598 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5269 transitions. Word has length 25 [2022-03-01 17:08:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:54,598 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5269 transitions. [2022-03-01 17:08:54,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5269 transitions. [2022-03-01 17:08:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:54,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:54,600 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] [2022-03-01 17:08:54,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-01 17:08:54,600 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:54,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1225190825, now seen corresponding path program 409 times [2022-03-01 17:08:54,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:54,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922435366] [2022-03-01 17:08:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:54,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:54,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:54,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922435366] [2022-03-01 17:08:54,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922435366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:54,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:54,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:54,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925936868] [2022-03-01 17:08:54,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:54,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:54,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:54,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:54,690 INFO L87 Difference]: Start difference. First operand 1338 states and 5269 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:54,761 INFO L93 Difference]: Finished difference Result 2810 states and 10302 transitions. [2022-03-01 17:08:54,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:54,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:54,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:54,767 INFO L225 Difference]: With dead ends: 2810 [2022-03-01 17:08:54,767 INFO L226 Difference]: Without dead ends: 2651 [2022-03-01 17:08:54,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:54,767 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 130 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:54,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 133 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:08:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2022-03-01 17:08:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 1370. [2022-03-01 17:08:54,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1369 states have (on average 3.9306062819576333) internal successors, (5381), 1369 states have internal predecessors, (5381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 5381 transitions. [2022-03-01 17:08:54,793 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 5381 transitions. Word has length 25 [2022-03-01 17:08:54,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:54,794 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 5381 transitions. [2022-03-01 17:08:54,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 5381 transitions. [2022-03-01 17:08:54,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:54,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:54,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:54,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-01 17:08:54,796 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2061478487, now seen corresponding path program 410 times [2022-03-01 17:08:54,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:54,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809834380] [2022-03-01 17:08:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:54,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:54,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:54,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809834380] [2022-03-01 17:08:54,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809834380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:54,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:54,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:54,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216943524] [2022-03-01 17:08:54,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:54,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:54,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:54,878 INFO L87 Difference]: Start difference. First operand 1370 states and 5381 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:54,955 INFO L93 Difference]: Finished difference Result 2873 states and 10509 transitions. [2022-03-01 17:08:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:54,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:54,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:54,961 INFO L225 Difference]: With dead ends: 2873 [2022-03-01 17:08:54,962 INFO L226 Difference]: Without dead ends: 2619 [2022-03-01 17:08:54,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:54,962 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 120 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:54,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 143 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-03-01 17:08:54,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 1338. [2022-03-01 17:08:54,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.9289454001495887) internal successors, (5253), 1337 states have internal predecessors, (5253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5253 transitions. [2022-03-01 17:08:54,998 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5253 transitions. Word has length 25 [2022-03-01 17:08:54,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:54,998 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5253 transitions. [2022-03-01 17:08:54,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:54,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5253 transitions. [2022-03-01 17:08:55,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:55,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:55,014 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] [2022-03-01 17:08:55,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-01 17:08:55,014 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:55,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:55,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1219438057, now seen corresponding path program 411 times [2022-03-01 17:08:55,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:55,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62566303] [2022-03-01 17:08:55,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:55,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:55,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:55,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62566303] [2022-03-01 17:08:55,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62566303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:55,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:55,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:55,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359606800] [2022-03-01 17:08:55,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:55,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:55,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:55,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:55,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:55,108 INFO L87 Difference]: Start difference. First operand 1338 states and 5253 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:55,185 INFO L93 Difference]: Finished difference Result 2755 states and 10091 transitions. [2022-03-01 17:08:55,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:55,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:55,191 INFO L225 Difference]: With dead ends: 2755 [2022-03-01 17:08:55,191 INFO L226 Difference]: Without dead ends: 2596 [2022-03-01 17:08:55,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:55,191 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 112 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:55,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 148 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2022-03-01 17:08:55,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 1354. [2022-03-01 17:08:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 3.917960088691796) internal successors, (5301), 1353 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 5301 transitions. [2022-03-01 17:08:55,216 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 5301 transitions. Word has length 25 [2022-03-01 17:08:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:55,216 INFO L470 AbstractCegarLoop]: Abstraction has 1354 states and 5301 transitions. [2022-03-01 17:08:55,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 5301 transitions. [2022-03-01 17:08:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:55,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:55,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:55,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-01 17:08:55,218 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:55,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:55,218 INFO L85 PathProgramCache]: Analyzing trace with hash 461058583, now seen corresponding path program 412 times [2022-03-01 17:08:55,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:55,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892370796] [2022-03-01 17:08:55,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:55,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:55,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:55,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892370796] [2022-03-01 17:08:55,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892370796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:55,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:55,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:55,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808798682] [2022-03-01 17:08:55,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:55,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:55,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:55,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:55,350 INFO L87 Difference]: Start difference. First operand 1354 states and 5301 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:55,461 INFO L93 Difference]: Finished difference Result 2779 states and 10167 transitions. [2022-03-01 17:08:55,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:55,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:55,467 INFO L225 Difference]: With dead ends: 2779 [2022-03-01 17:08:55,467 INFO L226 Difference]: Without dead ends: 2580 [2022-03-01 17:08:55,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:55,468 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 101 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:55,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 140 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-03-01 17:08:55,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 1338. [2022-03-01 17:08:55,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.9229618548990275) internal successors, (5245), 1337 states have internal predecessors, (5245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5245 transitions. [2022-03-01 17:08:55,494 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5245 transitions. Word has length 25 [2022-03-01 17:08:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:55,494 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5245 transitions. [2022-03-01 17:08:55,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5245 transitions. [2022-03-01 17:08:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:55,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:55,496 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] [2022-03-01 17:08:55,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-01 17:08:55,496 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash -2145662441, now seen corresponding path program 413 times [2022-03-01 17:08:55,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:55,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613670853] [2022-03-01 17:08:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:55,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:55,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613670853] [2022-03-01 17:08:55,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613670853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:55,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:55,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:55,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461561564] [2022-03-01 17:08:55,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:55,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:55,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:55,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:55,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:55,621 INFO L87 Difference]: Start difference. First operand 1338 states and 5245 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:55,744 INFO L93 Difference]: Finished difference Result 2870 states and 10514 transitions. [2022-03-01 17:08:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:55,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:55,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:55,750 INFO L225 Difference]: With dead ends: 2870 [2022-03-01 17:08:55,751 INFO L226 Difference]: Without dead ends: 2687 [2022-03-01 17:08:55,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:55,751 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:55,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 160 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-03-01 17:08:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1382. [2022-03-01 17:08:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1381 states have (on average 3.9080376538740045) internal successors, (5397), 1381 states have internal predecessors, (5397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 5397 transitions. [2022-03-01 17:08:55,778 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 5397 transitions. Word has length 25 [2022-03-01 17:08:55,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:55,778 INFO L470 AbstractCegarLoop]: Abstraction has 1382 states and 5397 transitions. [2022-03-01 17:08:55,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 5397 transitions. [2022-03-01 17:08:55,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:55,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:55,781 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] [2022-03-01 17:08:55,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-01 17:08:55,781 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:55,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:55,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1144972917, now seen corresponding path program 414 times [2022-03-01 17:08:55,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:55,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790416503] [2022-03-01 17:08:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:55,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:55,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:55,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790416503] [2022-03-01 17:08:55,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790416503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:55,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:55,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:55,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768030578] [2022-03-01 17:08:55,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:55,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:55,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:55,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:55,895 INFO L87 Difference]: Start difference. First operand 1382 states and 5397 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:55,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:55,994 INFO L93 Difference]: Finished difference Result 2909 states and 10617 transitions. [2022-03-01 17:08:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:55,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:55,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:56,000 INFO L225 Difference]: With dead ends: 2909 [2022-03-01 17:08:56,000 INFO L226 Difference]: Without dead ends: 2627 [2022-03-01 17:08:56,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:56,001 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:56,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 153 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:56,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-03-01 17:08:56,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 1322. [2022-03-01 17:08:56,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 3.9280847842543527) internal successors, (5189), 1321 states have internal predecessors, (5189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 5189 transitions. [2022-03-01 17:08:56,025 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 5189 transitions. Word has length 25 [2022-03-01 17:08:56,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:56,025 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 5189 transitions. [2022-03-01 17:08:56,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 5189 transitions. [2022-03-01 17:08:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:56,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:56,027 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] [2022-03-01 17:08:56,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-03-01 17:08:56,027 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:56,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:56,027 INFO L85 PathProgramCache]: Analyzing trace with hash 232856245, now seen corresponding path program 415 times [2022-03-01 17:08:56,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:56,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545429685] [2022-03-01 17:08:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:56,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:56,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:56,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545429685] [2022-03-01 17:08:56,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545429685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:56,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:56,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:56,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951737313] [2022-03-01 17:08:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:56,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:56,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:56,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:56,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:56,113 INFO L87 Difference]: Start difference. First operand 1322 states and 5189 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:56,186 INFO L93 Difference]: Finished difference Result 2750 states and 10050 transitions. [2022-03-01 17:08:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:56,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:56,192 INFO L225 Difference]: With dead ends: 2750 [2022-03-01 17:08:56,192 INFO L226 Difference]: Without dead ends: 2591 [2022-03-01 17:08:56,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:56,192 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 138 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:56,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 126 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-03-01 17:08:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1322. [2022-03-01 17:08:56,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1321 states have (on average 3.915972747918244) internal successors, (5173), 1321 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 5173 transitions. [2022-03-01 17:08:56,217 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 5173 transitions. Word has length 25 [2022-03-01 17:08:56,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:56,217 INFO L470 AbstractCegarLoop]: Abstraction has 1322 states and 5173 transitions. [2022-03-01 17:08:56,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 5173 transitions. [2022-03-01 17:08:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:56,219 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:56,219 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] [2022-03-01 17:08:56,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-03-01 17:08:56,219 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:56,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:56,219 INFO L85 PathProgramCache]: Analyzing trace with hash -775441739, now seen corresponding path program 416 times [2022-03-01 17:08:56,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:56,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946887061] [2022-03-01 17:08:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:56,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:56,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946887061] [2022-03-01 17:08:56,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946887061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:56,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:56,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:56,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762774624] [2022-03-01 17:08:56,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:56,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:56,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:56,322 INFO L87 Difference]: Start difference. First operand 1322 states and 5173 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:56,412 INFO L93 Difference]: Finished difference Result 2813 states and 10257 transitions. [2022-03-01 17:08:56,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:56,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:56,419 INFO L225 Difference]: With dead ends: 2813 [2022-03-01 17:08:56,419 INFO L226 Difference]: Without dead ends: 2559 [2022-03-01 17:08:56,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:56,419 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:56,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 150 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2022-03-01 17:08:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 1290. [2022-03-01 17:08:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 3.91388673390225) internal successors, (5045), 1289 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5045 transitions. [2022-03-01 17:08:56,444 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5045 transitions. Word has length 25 [2022-03-01 17:08:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:56,444 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5045 transitions. [2022-03-01 17:08:56,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5045 transitions. [2022-03-01 17:08:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:56,446 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:56,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:56,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-03-01 17:08:56,447 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:56,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1466193385, now seen corresponding path program 417 times [2022-03-01 17:08:56,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:56,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619315542] [2022-03-01 17:08:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:56,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:56,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:56,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:56,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619315542] [2022-03-01 17:08:56,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619315542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:56,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:56,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:56,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085401959] [2022-03-01 17:08:56,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:56,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:56,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:56,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:56,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:56,574 INFO L87 Difference]: Start difference. First operand 1290 states and 5045 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:56,666 INFO L93 Difference]: Finished difference Result 2655 states and 9699 transitions. [2022-03-01 17:08:56,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:56,667 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:56,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:56,672 INFO L225 Difference]: With dead ends: 2655 [2022-03-01 17:08:56,672 INFO L226 Difference]: Without dead ends: 2496 [2022-03-01 17:08:56,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:56,672 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:56,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 154 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-03-01 17:08:56,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1306. [2022-03-01 17:08:56,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.9026819923371647) internal successors, (5093), 1305 states have internal predecessors, (5093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5093 transitions. [2022-03-01 17:08:56,695 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5093 transitions. Word has length 25 [2022-03-01 17:08:56,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:56,695 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5093 transitions. [2022-03-01 17:08:56,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5093 transitions. [2022-03-01 17:08:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:56,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:56,697 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] [2022-03-01 17:08:56,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-03-01 17:08:56,697 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:56,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:56,698 INFO L85 PathProgramCache]: Analyzing trace with hash 886501911, now seen corresponding path program 418 times [2022-03-01 17:08:56,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:56,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734440306] [2022-03-01 17:08:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:56,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:56,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:56,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734440306] [2022-03-01 17:08:56,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734440306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:56,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:56,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:56,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590133792] [2022-03-01 17:08:56,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:56,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:56,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:56,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:56,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:56,806 INFO L87 Difference]: Start difference. First operand 1306 states and 5093 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:56,909 INFO L93 Difference]: Finished difference Result 2543 states and 9362 transitions. [2022-03-01 17:08:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:56,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:56,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:56,914 INFO L225 Difference]: With dead ends: 2543 [2022-03-01 17:08:56,914 INFO L226 Difference]: Without dead ends: 2352 [2022-03-01 17:08:56,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:56,915 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:56,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:56,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-03-01 17:08:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1290. [2022-03-01 17:08:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1289 states have (on average 3.9076803723816913) internal successors, (5037), 1289 states have internal predecessors, (5037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 5037 transitions. [2022-03-01 17:08:56,937 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 5037 transitions. Word has length 25 [2022-03-01 17:08:56,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:56,937 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 5037 transitions. [2022-03-01 17:08:56,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:56,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 5037 transitions. [2022-03-01 17:08:56,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:56,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:56,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:56,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-03-01 17:08:56,939 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:56,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1720219113, now seen corresponding path program 419 times [2022-03-01 17:08:56,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:56,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696560660] [2022-03-01 17:08:56,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:56,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:57,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:57,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696560660] [2022-03-01 17:08:57,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696560660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:57,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:57,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:57,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626414776] [2022-03-01 17:08:57,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:57,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:57,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:57,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:57,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:57,045 INFO L87 Difference]: Start difference. First operand 1290 states and 5037 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:57,143 INFO L93 Difference]: Finished difference Result 2790 states and 10190 transitions. [2022-03-01 17:08:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:57,148 INFO L225 Difference]: With dead ends: 2790 [2022-03-01 17:08:57,148 INFO L226 Difference]: Without dead ends: 2615 [2022-03-01 17:08:57,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:57,148 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 122 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:57,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 142 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:57,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2022-03-01 17:08:57,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1330. [2022-03-01 17:08:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 1329 states have (on average 3.8954100827689992) internal successors, (5177), 1329 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 5177 transitions. [2022-03-01 17:08:57,172 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 5177 transitions. Word has length 25 [2022-03-01 17:08:57,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:57,172 INFO L470 AbstractCegarLoop]: Abstraction has 1330 states and 5177 transitions. [2022-03-01 17:08:57,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 5177 transitions. [2022-03-01 17:08:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:57,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:57,174 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] [2022-03-01 17:08:57,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-03-01 17:08:57,175 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:57,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:57,175 INFO L85 PathProgramCache]: Analyzing trace with hash 919223797, now seen corresponding path program 420 times [2022-03-01 17:08:57,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:57,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744291997] [2022-03-01 17:08:57,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:57,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:57,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:57,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744291997] [2022-03-01 17:08:57,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744291997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:57,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:57,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:57,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137520780] [2022-03-01 17:08:57,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:57,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:57,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:57,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:57,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:57,274 INFO L87 Difference]: Start difference. First operand 1330 states and 5177 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:57,374 INFO L93 Difference]: Finished difference Result 2742 states and 9990 transitions. [2022-03-01 17:08:57,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:57,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:57,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:57,380 INFO L225 Difference]: With dead ends: 2742 [2022-03-01 17:08:57,380 INFO L226 Difference]: Without dead ends: 2464 [2022-03-01 17:08:57,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:57,380 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 91 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:57,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 172 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-03-01 17:08:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1274. [2022-03-01 17:08:57,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.912804399057345) internal successors, (4981), 1273 states have internal predecessors, (4981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4981 transitions. [2022-03-01 17:08:57,405 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4981 transitions. Word has length 25 [2022-03-01 17:08:57,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:57,405 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4981 transitions. [2022-03-01 17:08:57,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4981 transitions. [2022-03-01 17:08:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:57,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:57,407 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] [2022-03-01 17:08:57,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-03-01 17:08:57,408 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:57,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1970564649, now seen corresponding path program 421 times [2022-03-01 17:08:57,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:57,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977281226] [2022-03-01 17:08:57,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:57,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:57,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:57,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977281226] [2022-03-01 17:08:57,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977281226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:57,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:57,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:57,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739441044] [2022-03-01 17:08:57,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:57,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:57,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:57,542 INFO L87 Difference]: Start difference. First operand 1274 states and 4981 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:57,658 INFO L93 Difference]: Finished difference Result 2600 states and 9504 transitions. [2022-03-01 17:08:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:57,658 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:57,663 INFO L225 Difference]: With dead ends: 2600 [2022-03-01 17:08:57,664 INFO L226 Difference]: Without dead ends: 2441 [2022-03-01 17:08:57,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:57,664 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 98 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:57,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 181 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:57,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-03-01 17:08:57,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 1298. [2022-03-01 17:08:57,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.905165767154973) internal successors, (5065), 1297 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5065 transitions. [2022-03-01 17:08:57,688 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5065 transitions. Word has length 25 [2022-03-01 17:08:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:57,688 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5065 transitions. [2022-03-01 17:08:57,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5065 transitions. [2022-03-01 17:08:57,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:57,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:57,690 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] [2022-03-01 17:08:57,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-03-01 17:08:57,690 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:57,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:57,690 INFO L85 PathProgramCache]: Analyzing trace with hash -290068009, now seen corresponding path program 422 times [2022-03-01 17:08:57,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:57,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790852069] [2022-03-01 17:08:57,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:57,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:57,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:57,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:57,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790852069] [2022-03-01 17:08:57,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790852069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:57,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:57,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:57,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614299951] [2022-03-01 17:08:57,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:57,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:57,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:57,812 INFO L87 Difference]: Start difference. First operand 1298 states and 5065 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:57,917 INFO L93 Difference]: Finished difference Result 2624 states and 9580 transitions. [2022-03-01 17:08:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:57,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:57,923 INFO L225 Difference]: With dead ends: 2624 [2022-03-01 17:08:57,923 INFO L226 Difference]: Without dead ends: 2425 [2022-03-01 17:08:57,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:57,923 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 120 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:57,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 138 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:57,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-03-01 17:08:57,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 1282. [2022-03-01 17:08:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.910226385636222) internal successors, (5009), 1281 states have internal predecessors, (5009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5009 transitions. [2022-03-01 17:08:57,948 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5009 transitions. Word has length 25 [2022-03-01 17:08:57,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:57,948 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5009 transitions. [2022-03-01 17:08:57,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5009 transitions. [2022-03-01 17:08:57,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:57,950 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:57,950 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:57,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-03-01 17:08:57,950 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1477605685, now seen corresponding path program 423 times [2022-03-01 17:08:57,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:57,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920844279] [2022-03-01 17:08:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:58,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:58,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920844279] [2022-03-01 17:08:58,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920844279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:58,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:58,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:58,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051748331] [2022-03-01 17:08:58,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:58,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:58,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:58,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:58,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:58,080 INFO L87 Difference]: Start difference. First operand 1282 states and 5009 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:58,182 INFO L93 Difference]: Finished difference Result 2544 states and 9292 transitions. [2022-03-01 17:08:58,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:58,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:58,188 INFO L225 Difference]: With dead ends: 2544 [2022-03-01 17:08:58,188 INFO L226 Difference]: Without dead ends: 2385 [2022-03-01 17:08:58,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:58,189 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:58,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 161 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:58,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2022-03-01 17:08:58,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 1298. [2022-03-01 17:08:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.8989976869699308) internal successors, (5057), 1297 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5057 transitions. [2022-03-01 17:08:58,213 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5057 transitions. Word has length 25 [2022-03-01 17:08:58,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:58,213 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5057 transitions. [2022-03-01 17:08:58,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5057 transitions. [2022-03-01 17:08:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:58,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:58,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:58,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-03-01 17:08:58,215 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:58,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:58,215 INFO L85 PathProgramCache]: Analyzing trace with hash 2119944663, now seen corresponding path program 424 times [2022-03-01 17:08:58,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:58,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465641529] [2022-03-01 17:08:58,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:58,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:58,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:58,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465641529] [2022-03-01 17:08:58,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465641529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:58,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:58,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:58,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508600041] [2022-03-01 17:08:58,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:58,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:58,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:58,326 INFO L87 Difference]: Start difference. First operand 1298 states and 5057 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:58,435 INFO L93 Difference]: Finished difference Result 2432 states and 8955 transitions. [2022-03-01 17:08:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:58,435 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:58,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:58,440 INFO L225 Difference]: With dead ends: 2432 [2022-03-01 17:08:58,440 INFO L226 Difference]: Without dead ends: 2241 [2022-03-01 17:08:58,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:58,440 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 92 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:58,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 160 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:58,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-03-01 17:08:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1282. [2022-03-01 17:08:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.9039812646370025) internal successors, (5001), 1281 states have internal predecessors, (5001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5001 transitions. [2022-03-01 17:08:58,462 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5001 transitions. Word has length 25 [2022-03-01 17:08:58,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:58,462 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5001 transitions. [2022-03-01 17:08:58,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5001 transitions. [2022-03-01 17:08:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:58,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:58,464 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] [2022-03-01 17:08:58,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-03-01 17:08:58,465 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:58,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1497313751, now seen corresponding path program 425 times [2022-03-01 17:08:58,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:58,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043148783] [2022-03-01 17:08:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:58,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:58,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043148783] [2022-03-01 17:08:58,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043148783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:58,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:58,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:58,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235501586] [2022-03-01 17:08:58,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:58,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:58,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:58,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:58,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:58,585 INFO L87 Difference]: Start difference. First operand 1282 states and 5001 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:58,720 INFO L93 Difference]: Finished difference Result 2448 states and 9027 transitions. [2022-03-01 17:08:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:58,720 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:58,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:58,725 INFO L225 Difference]: With dead ends: 2448 [2022-03-01 17:08:58,725 INFO L226 Difference]: Without dead ends: 2265 [2022-03-01 17:08:58,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:58,725 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 92 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:58,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 163 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states. [2022-03-01 17:08:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 1306. [2022-03-01 17:08:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.8904214559386974) internal successors, (5077), 1305 states have internal predecessors, (5077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5077 transitions. [2022-03-01 17:08:58,746 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5077 transitions. Word has length 25 [2022-03-01 17:08:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:58,746 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5077 transitions. [2022-03-01 17:08:58,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5077 transitions. [2022-03-01 17:08:58,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:58,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:58,748 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] [2022-03-01 17:08:58,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-03-01 17:08:58,748 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:58,748 INFO L85 PathProgramCache]: Analyzing trace with hash -546023243, now seen corresponding path program 426 times [2022-03-01 17:08:58,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:58,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552462392] [2022-03-01 17:08:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:58,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:58,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:58,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552462392] [2022-03-01 17:08:58,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552462392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:58,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:58,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:58,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327236864] [2022-03-01 17:08:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:58,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:58,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:58,860 INFO L87 Difference]: Start difference. First operand 1306 states and 5077 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:58,956 INFO L93 Difference]: Finished difference Result 2264 states and 8414 transitions. [2022-03-01 17:08:58,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:58,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:58,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:58,961 INFO L225 Difference]: With dead ends: 2264 [2022-03-01 17:08:58,961 INFO L226 Difference]: Without dead ends: 2057 [2022-03-01 17:08:58,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:58,961 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 76 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:58,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 150 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:58,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2022-03-01 17:08:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 1274. [2022-03-01 17:08:58,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.9096622152395915) internal successors, (4977), 1273 states have internal predecessors, (4977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4977 transitions. [2022-03-01 17:08:58,983 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4977 transitions. Word has length 25 [2022-03-01 17:08:58,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:58,983 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4977 transitions. [2022-03-01 17:08:58,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:58,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4977 transitions. [2022-03-01 17:08:58,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:58,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:58,985 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] [2022-03-01 17:08:58,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-03-01 17:08:58,985 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:58,986 INFO L85 PathProgramCache]: Analyzing trace with hash 404343255, now seen corresponding path program 427 times [2022-03-01 17:08:58,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:58,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87033809] [2022-03-01 17:08:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:58,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:59,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:59,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87033809] [2022-03-01 17:08:59,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87033809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:59,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:59,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:59,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240231697] [2022-03-01 17:08:59,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:59,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:59,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:59,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:59,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:59,085 INFO L87 Difference]: Start difference. First operand 1274 states and 4977 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:59,191 INFO L93 Difference]: Finished difference Result 2823 states and 10363 transitions. [2022-03-01 17:08:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:59,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:59,197 INFO L225 Difference]: With dead ends: 2823 [2022-03-01 17:08:59,197 INFO L226 Difference]: Without dead ends: 2640 [2022-03-01 17:08:59,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:59,198 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:59,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 140 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:59,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2022-03-01 17:08:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 1318. [2022-03-01 17:08:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 1317 states have (on average 3.906605922551253) internal successors, (5145), 1317 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 5145 transitions. [2022-03-01 17:08:59,222 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 5145 transitions. Word has length 25 [2022-03-01 17:08:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:59,222 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 5145 transitions. [2022-03-01 17:08:59,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 5145 transitions. [2022-03-01 17:08:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:59,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:59,224 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] [2022-03-01 17:08:59,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-03-01 17:08:59,224 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:59,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:59,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1638993739, now seen corresponding path program 428 times [2022-03-01 17:08:59,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:59,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725918362] [2022-03-01 17:08:59,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:59,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:59,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:59,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725918362] [2022-03-01 17:08:59,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725918362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:59,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:59,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:59,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714647503] [2022-03-01 17:08:59,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:59,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:59,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:59,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:59,324 INFO L87 Difference]: Start difference. First operand 1318 states and 5145 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:59,420 INFO L93 Difference]: Finished difference Result 2815 states and 10311 transitions. [2022-03-01 17:08:59,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:59,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:59,426 INFO L225 Difference]: With dead ends: 2815 [2022-03-01 17:08:59,426 INFO L226 Difference]: Without dead ends: 2616 [2022-03-01 17:08:59,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:59,426 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:59,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 141 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:59,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2022-03-01 17:08:59,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 1294. [2022-03-01 17:08:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9110595514307813) internal successors, (5057), 1293 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5057 transitions. [2022-03-01 17:08:59,452 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5057 transitions. Word has length 25 [2022-03-01 17:08:59,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:59,452 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5057 transitions. [2022-03-01 17:08:59,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5057 transitions. [2022-03-01 17:08:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:59,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:59,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:08:59,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-03-01 17:08:59,454 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:59,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1416692171, now seen corresponding path program 429 times [2022-03-01 17:08:59,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:59,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373098327] [2022-03-01 17:08:59,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:59,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:59,571 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:59,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373098327] [2022-03-01 17:08:59,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373098327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:59,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:59,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:59,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553098785] [2022-03-01 17:08:59,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:59,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:59,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:59,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:59,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:59,572 INFO L87 Difference]: Start difference. First operand 1294 states and 5057 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:59,656 INFO L93 Difference]: Finished difference Result 2751 states and 10075 transitions. [2022-03-01 17:08:59,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:59,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:59,662 INFO L225 Difference]: With dead ends: 2751 [2022-03-01 17:08:59,662 INFO L226 Difference]: Without dead ends: 2568 [2022-03-01 17:08:59,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:59,663 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 105 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:59,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 147 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-03-01 17:08:59,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 1338. [2022-03-01 17:08:59,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1337 states have (on average 3.8960359012715036) internal successors, (5209), 1337 states have internal predecessors, (5209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 5209 transitions. [2022-03-01 17:08:59,691 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 5209 transitions. Word has length 25 [2022-03-01 17:08:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:59,692 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 5209 transitions. [2022-03-01 17:08:59,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 5209 transitions. [2022-03-01 17:08:59,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:59,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:59,694 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] [2022-03-01 17:08:59,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-03-01 17:08:59,694 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:59,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash -699124171, now seen corresponding path program 430 times [2022-03-01 17:08:59,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:59,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469576561] [2022-03-01 17:08:59,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:59,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:59,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:59,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469576561] [2022-03-01 17:08:59,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469576561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:59,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:59,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:59,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797600763] [2022-03-01 17:08:59,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:59,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:59,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:59,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:59,776 INFO L87 Difference]: Start difference. First operand 1338 states and 5209 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:08:59,848 INFO L93 Difference]: Finished difference Result 2790 states and 10178 transitions. [2022-03-01 17:08:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:08:59,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:08:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:08:59,853 INFO L225 Difference]: With dead ends: 2790 [2022-03-01 17:08:59,853 INFO L226 Difference]: Without dead ends: 2524 [2022-03-01 17:08:59,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:08:59,854 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:08:59,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 147 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:08:59,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-03-01 17:08:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1294. [2022-03-01 17:08:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.8955916473317864) internal successors, (5037), 1293 states have internal predecessors, (5037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5037 transitions. [2022-03-01 17:08:59,878 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5037 transitions. Word has length 25 [2022-03-01 17:08:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:08:59,878 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5037 transitions. [2022-03-01 17:08:59,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:08:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5037 transitions. [2022-03-01 17:08:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:08:59,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:08:59,880 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] [2022-03-01 17:08:59,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-03-01 17:08:59,880 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:08:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:08:59,880 INFO L85 PathProgramCache]: Analyzing trace with hash -434344557, now seen corresponding path program 431 times [2022-03-01 17:08:59,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:08:59,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715656847] [2022-03-01 17:08:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:08:59,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:08:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:08:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:08:59,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:08:59,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715656847] [2022-03-01 17:08:59,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715656847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:08:59,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:08:59,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:08:59,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882705224] [2022-03-01 17:08:59,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:08:59,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:08:59,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:08:59,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:08:59,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:08:59,960 INFO L87 Difference]: Start difference. First operand 1294 states and 5037 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:00,042 INFO L93 Difference]: Finished difference Result 2691 states and 9819 transitions. [2022-03-01 17:09:00,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:00,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:00,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,048 INFO L225 Difference]: With dead ends: 2691 [2022-03-01 17:09:00,048 INFO L226 Difference]: Without dead ends: 2516 [2022-03-01 17:09:00,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:00,048 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 102 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 149 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:00,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2022-03-01 17:09:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 1334. [2022-03-01 17:09:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 1333 states have (on average 3.883720930232558) internal successors, (5177), 1333 states have internal predecessors, (5177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 5177 transitions. [2022-03-01 17:09:00,073 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 5177 transitions. Word has length 25 [2022-03-01 17:09:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:00,073 INFO L470 AbstractCegarLoop]: Abstraction has 1334 states and 5177 transitions. [2022-03-01 17:09:00,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 5177 transitions. [2022-03-01 17:09:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:00,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:00,075 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] [2022-03-01 17:09:00,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-03-01 17:09:00,075 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:00,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:00,075 INFO L85 PathProgramCache]: Analyzing trace with hash -215992971, now seen corresponding path program 432 times [2022-03-01 17:09:00,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:00,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028604688] [2022-03-01 17:09:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:00,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:00,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:00,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028604688] [2022-03-01 17:09:00,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028604688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:00,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:00,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:00,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394647055] [2022-03-01 17:09:00,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:00,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:00,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:00,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:00,157 INFO L87 Difference]: Start difference. First operand 1334 states and 5177 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:00,223 INFO L93 Difference]: Finished difference Result 2643 states and 9619 transitions. [2022-03-01 17:09:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:00,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:00,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,229 INFO L225 Difference]: With dead ends: 2643 [2022-03-01 17:09:00,229 INFO L226 Difference]: Without dead ends: 2353 [2022-03-01 17:09:00,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:00,229 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 130 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2022-03-01 17:09:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 1266. [2022-03-01 17:09:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 3.915415019762846) internal successors, (4953), 1265 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4953 transitions. [2022-03-01 17:09:00,253 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4953 transitions. Word has length 25 [2022-03-01 17:09:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:00,253 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 4953 transitions. [2022-03-01 17:09:00,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4953 transitions. [2022-03-01 17:09:00,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:00,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:00,255 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] [2022-03-01 17:09:00,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-03-01 17:09:00,255 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:00,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1690129657, now seen corresponding path program 433 times [2022-03-01 17:09:00,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:00,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868036959] [2022-03-01 17:09:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:00,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:00,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:00,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868036959] [2022-03-01 17:09:00,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868036959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:00,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:00,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:00,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718131023] [2022-03-01 17:09:00,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:00,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:00,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:00,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:00,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:00,339 INFO L87 Difference]: Start difference. First operand 1266 states and 4953 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:00,406 INFO L93 Difference]: Finished difference Result 2549 states and 9317 transitions. [2022-03-01 17:09:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:00,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,411 INFO L225 Difference]: With dead ends: 2549 [2022-03-01 17:09:00,411 INFO L226 Difference]: Without dead ends: 2390 [2022-03-01 17:09:00,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:00,411 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 109 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 160 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:00,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-01 17:09:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1294. [2022-03-01 17:09:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9110595514307813) internal successors, (5057), 1293 states have internal predecessors, (5057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5057 transitions. [2022-03-01 17:09:00,434 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5057 transitions. Word has length 25 [2022-03-01 17:09:00,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:00,435 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5057 transitions. [2022-03-01 17:09:00,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5057 transitions. [2022-03-01 17:09:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:00,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:00,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:00,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-03-01 17:09:00,437 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:00,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:00,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1596539655, now seen corresponding path program 434 times [2022-03-01 17:09:00,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:00,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786843606] [2022-03-01 17:09:00,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:00,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:00,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786843606] [2022-03-01 17:09:00,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786843606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:00,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:00,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:00,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601004789] [2022-03-01 17:09:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:00,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:00,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:00,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:00,512 INFO L87 Difference]: Start difference. First operand 1294 states and 5057 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:00,589 INFO L93 Difference]: Finished difference Result 2577 states and 9405 transitions. [2022-03-01 17:09:00,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:00,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:00,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,595 INFO L225 Difference]: With dead ends: 2577 [2022-03-01 17:09:00,595 INFO L226 Difference]: Without dead ends: 2374 [2022-03-01 17:09:00,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:00,596 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 109 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 155 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-03-01 17:09:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1278. [2022-03-01 17:09:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.9162098668754894) internal successors, (5001), 1277 states have internal predecessors, (5001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 5001 transitions. [2022-03-01 17:09:00,621 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 5001 transitions. Word has length 25 [2022-03-01 17:09:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:00,622 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 5001 transitions. [2022-03-01 17:09:00,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 5001 transitions. [2022-03-01 17:09:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:00,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:00,624 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] [2022-03-01 17:09:00,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-03-01 17:09:00,624 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 843332695, now seen corresponding path program 435 times [2022-03-01 17:09:00,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:00,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515102894] [2022-03-01 17:09:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:00,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:00,699 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:00,699 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515102894] [2022-03-01 17:09:00,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515102894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:00,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:00,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:00,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685632413] [2022-03-01 17:09:00,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:00,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:00,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:00,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:00,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:00,700 INFO L87 Difference]: Start difference. First operand 1278 states and 5001 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:00,776 INFO L93 Difference]: Finished difference Result 2545 states and 9297 transitions. [2022-03-01 17:09:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:00,776 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:00,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,782 INFO L225 Difference]: With dead ends: 2545 [2022-03-01 17:09:00,783 INFO L226 Difference]: Without dead ends: 2386 [2022-03-01 17:09:00,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:00,783 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 105 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 157 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-03-01 17:09:00,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1294. [2022-03-01 17:09:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9048723897911835) internal successors, (5049), 1293 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5049 transitions. [2022-03-01 17:09:00,808 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5049 transitions. Word has length 25 [2022-03-01 17:09:00,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:00,809 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5049 transitions. [2022-03-01 17:09:00,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5049 transitions. [2022-03-01 17:09:00,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:00,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:00,812 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] [2022-03-01 17:09:00,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-03-01 17:09:00,812 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:00,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:00,812 INFO L85 PathProgramCache]: Analyzing trace with hash 813473017, now seen corresponding path program 436 times [2022-03-01 17:09:00,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:00,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793051866] [2022-03-01 17:09:00,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:00,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:00,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:00,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793051866] [2022-03-01 17:09:00,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793051866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:00,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:00,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:00,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506023922] [2022-03-01 17:09:00,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:00,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:00,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:00,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:00,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:00,895 INFO L87 Difference]: Start difference. First operand 1294 states and 5049 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:00,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:00,981 INFO L93 Difference]: Finished difference Result 2569 states and 9373 transitions. [2022-03-01 17:09:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:00,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:00,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:00,986 INFO L225 Difference]: With dead ends: 2569 [2022-03-01 17:09:00,986 INFO L226 Difference]: Without dead ends: 2370 [2022-03-01 17:09:00,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:00,987 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:00,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:00,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-03-01 17:09:01,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1278. [2022-03-01 17:09:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.9099451840250588) internal successors, (4993), 1277 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4993 transitions. [2022-03-01 17:09:01,012 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4993 transitions. Word has length 25 [2022-03-01 17:09:01,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:01,012 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4993 transitions. [2022-03-01 17:09:01,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4993 transitions. [2022-03-01 17:09:01,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:01,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:01,014 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] [2022-03-01 17:09:01,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-03-01 17:09:01,014 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:01,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:01,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1546971911, now seen corresponding path program 437 times [2022-03-01 17:09:01,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:01,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553090913] [2022-03-01 17:09:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:01,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:01,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:01,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553090913] [2022-03-01 17:09:01,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553090913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:01,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:01,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:01,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173460465] [2022-03-01 17:09:01,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:01,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:01,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:01,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:01,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:01,108 INFO L87 Difference]: Start difference. First operand 1278 states and 4993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:01,181 INFO L93 Difference]: Finished difference Result 2613 states and 9549 transitions. [2022-03-01 17:09:01,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:01,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:01,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:01,187 INFO L225 Difference]: With dead ends: 2613 [2022-03-01 17:09:01,187 INFO L226 Difference]: Without dead ends: 2426 [2022-03-01 17:09:01,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:01,188 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:01,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2022-03-01 17:09:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 1306. [2022-03-01 17:09:01,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.893486590038314) internal successors, (5081), 1305 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5081 transitions. [2022-03-01 17:09:01,216 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5081 transitions. Word has length 25 [2022-03-01 17:09:01,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:01,216 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5081 transitions. [2022-03-01 17:09:01,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5081 transitions. [2022-03-01 17:09:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:01,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:01,219 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] [2022-03-01 17:09:01,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-03-01 17:09:01,219 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:01,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash 704658391, now seen corresponding path program 438 times [2022-03-01 17:09:01,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:01,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285238699] [2022-03-01 17:09:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:01,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:01,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:01,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285238699] [2022-03-01 17:09:01,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285238699] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:01,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:01,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:01,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240131151] [2022-03-01 17:09:01,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:01,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:01,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:01,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:01,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:01,307 INFO L87 Difference]: Start difference. First operand 1306 states and 5081 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:01,382 INFO L93 Difference]: Finished difference Result 2609 states and 9509 transitions. [2022-03-01 17:09:01,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:01,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:01,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:01,387 INFO L225 Difference]: With dead ends: 2609 [2022-03-01 17:09:01,388 INFO L226 Difference]: Without dead ends: 2390 [2022-03-01 17:09:01,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:01,388 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 102 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:01,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 158 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:01,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-01 17:09:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1270. [2022-03-01 17:09:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9156816390858946) internal successors, (4969), 1269 states have internal predecessors, (4969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4969 transitions. [2022-03-01 17:09:01,411 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4969 transitions. Word has length 25 [2022-03-01 17:09:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:01,412 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4969 transitions. [2022-03-01 17:09:01,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4969 transitions. [2022-03-01 17:09:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:01,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:01,414 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] [2022-03-01 17:09:01,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-03-01 17:09:01,414 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:01,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:01,414 INFO L85 PathProgramCache]: Analyzing trace with hash -332931881, now seen corresponding path program 439 times [2022-03-01 17:09:01,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:01,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275998965] [2022-03-01 17:09:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:01,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:01,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275998965] [2022-03-01 17:09:01,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275998965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:01,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:01,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:01,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675911233] [2022-03-01 17:09:01,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:01,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:01,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:01,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:01,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:01,494 INFO L87 Difference]: Start difference. First operand 1270 states and 4969 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:01,559 INFO L93 Difference]: Finished difference Result 2513 states and 9169 transitions. [2022-03-01 17:09:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:01,564 INFO L225 Difference]: With dead ends: 2513 [2022-03-01 17:09:01,564 INFO L226 Difference]: Without dead ends: 2354 [2022-03-01 17:09:01,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:01,564 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 130 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:01,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 138 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:01,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2022-03-01 17:09:01,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1294. [2022-03-01 17:09:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.907965970610982) internal successors, (5053), 1293 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5053 transitions. [2022-03-01 17:09:01,588 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5053 transitions. Word has length 25 [2022-03-01 17:09:01,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:01,588 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5053 transitions. [2022-03-01 17:09:01,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5053 transitions. [2022-03-01 17:09:01,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:01,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:01,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:01,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-03-01 17:09:01,591 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:01,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:01,591 INFO L85 PathProgramCache]: Analyzing trace with hash 675366103, now seen corresponding path program 440 times [2022-03-01 17:09:01,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:01,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199248944] [2022-03-01 17:09:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:01,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:01,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:01,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199248944] [2022-03-01 17:09:01,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199248944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:01,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:01,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:01,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035040820] [2022-03-01 17:09:01,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:01,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:01,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:01,672 INFO L87 Difference]: Start difference. First operand 1294 states and 5053 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:01,841 INFO L93 Difference]: Finished difference Result 2541 states and 9257 transitions. [2022-03-01 17:09:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:01,842 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:01,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:01,847 INFO L225 Difference]: With dead ends: 2541 [2022-03-01 17:09:01,847 INFO L226 Difference]: Without dead ends: 2338 [2022-03-01 17:09:01,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:01,848 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:01,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:01,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2022-03-01 17:09:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1278. [2022-03-01 17:09:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.913077525450274) internal successors, (4997), 1277 states have internal predecessors, (4997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4997 transitions. [2022-03-01 17:09:01,883 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4997 transitions. Word has length 25 [2022-03-01 17:09:01,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:01,883 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4997 transitions. [2022-03-01 17:09:01,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4997 transitions. [2022-03-01 17:09:01,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:01,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:01,885 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] [2022-03-01 17:09:01,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-03-01 17:09:01,885 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1128958761, now seen corresponding path program 441 times [2022-03-01 17:09:01,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:01,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117206758] [2022-03-01 17:09:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:01,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:01,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:01,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117206758] [2022-03-01 17:09:01,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117206758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:01,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:01,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:01,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833524551] [2022-03-01 17:09:01,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:01,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:01,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:01,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:01,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:01,985 INFO L87 Difference]: Start difference. First operand 1278 states and 4997 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:02,137 INFO L93 Difference]: Finished difference Result 2469 states and 9009 transitions. [2022-03-01 17:09:02,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:02,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:02,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:02,142 INFO L225 Difference]: With dead ends: 2469 [2022-03-01 17:09:02,142 INFO L226 Difference]: Without dead ends: 2310 [2022-03-01 17:09:02,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:02,143 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:02,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 160 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:02,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-03-01 17:09:02,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1294. [2022-03-01 17:09:02,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9017788089713843) internal successors, (5045), 1293 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5045 transitions. [2022-03-01 17:09:02,165 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5045 transitions. Word has length 25 [2022-03-01 17:09:02,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:02,165 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5045 transitions. [2022-03-01 17:09:02,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5045 transitions. [2022-03-01 17:09:02,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:02,167 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:02,167 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] [2022-03-01 17:09:02,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-03-01 17:09:02,167 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:02,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:02,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1774490375, now seen corresponding path program 442 times [2022-03-01 17:09:02,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:02,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934785868] [2022-03-01 17:09:02,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:02,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:02,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934785868] [2022-03-01 17:09:02,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934785868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:02,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:02,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:02,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237523602] [2022-03-01 17:09:02,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:02,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:02,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:02,256 INFO L87 Difference]: Start difference. First operand 1294 states and 5045 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:02,373 INFO L93 Difference]: Finished difference Result 2357 states and 8672 transitions. [2022-03-01 17:09:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:02,377 INFO L225 Difference]: With dead ends: 2357 [2022-03-01 17:09:02,377 INFO L226 Difference]: Without dead ends: 2166 [2022-03-01 17:09:02,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:02,378 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 86 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:02,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 178 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:02,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2022-03-01 17:09:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 1278. [2022-03-01 17:09:02,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.906812842599843) internal successors, (4989), 1277 states have internal predecessors, (4989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4989 transitions. [2022-03-01 17:09:02,399 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4989 transitions. Word has length 25 [2022-03-01 17:09:02,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:02,399 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4989 transitions. [2022-03-01 17:09:02,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4989 transitions. [2022-03-01 17:09:02,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:02,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:02,401 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] [2022-03-01 17:09:02,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-03-01 17:09:02,401 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:02,402 INFO L85 PathProgramCache]: Analyzing trace with hash -512166663, now seen corresponding path program 443 times [2022-03-01 17:09:02,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:02,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640360199] [2022-03-01 17:09:02,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:02,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:02,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:02,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:02,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640360199] [2022-03-01 17:09:02,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640360199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:02,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:02,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:02,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658475335] [2022-03-01 17:09:02,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:02,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:02,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:02,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:02,492 INFO L87 Difference]: Start difference. First operand 1278 states and 4989 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:02,590 INFO L93 Difference]: Finished difference Result 2505 states and 9141 transitions. [2022-03-01 17:09:02,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:02,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:02,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:02,595 INFO L225 Difference]: With dead ends: 2505 [2022-03-01 17:09:02,595 INFO L226 Difference]: Without dead ends: 2318 [2022-03-01 17:09:02,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:02,595 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:02,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:02,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-03-01 17:09:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1302. [2022-03-01 17:09:02,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 3.8931591083781707) internal successors, (5065), 1301 states have internal predecessors, (5065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5065 transitions. [2022-03-01 17:09:02,633 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5065 transitions. Word has length 25 [2022-03-01 17:09:02,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:02,633 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5065 transitions. [2022-03-01 17:09:02,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5065 transitions. [2022-03-01 17:09:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:02,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:02,635 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] [2022-03-01 17:09:02,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-03-01 17:09:02,635 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:02,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:02,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1904311209, now seen corresponding path program 444 times [2022-03-01 17:09:02,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:02,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790216137] [2022-03-01 17:09:02,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:02,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:02,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:02,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:02,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790216137] [2022-03-01 17:09:02,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790216137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:02,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:02,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:02,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128500729] [2022-03-01 17:09:02,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:02,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:02,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:02,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:02,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:02,724 INFO L87 Difference]: Start difference. First operand 1302 states and 5065 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:02,815 INFO L93 Difference]: Finished difference Result 2365 states and 8692 transitions. [2022-03-01 17:09:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:02,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:02,821 INFO L225 Difference]: With dead ends: 2365 [2022-03-01 17:09:02,821 INFO L226 Difference]: Without dead ends: 2158 [2022-03-01 17:09:02,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:02,821 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:02,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 165 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:02,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-03-01 17:09:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1270. [2022-03-01 17:09:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9125295508274234) internal successors, (4965), 1269 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4965 transitions. [2022-03-01 17:09:02,843 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4965 transitions. Word has length 25 [2022-03-01 17:09:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:02,843 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4965 transitions. [2022-03-01 17:09:02,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4965 transitions. [2022-03-01 17:09:02,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:02,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:02,845 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] [2022-03-01 17:09:02,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-03-01 17:09:02,845 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:02,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1189679947, now seen corresponding path program 445 times [2022-03-01 17:09:02,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:02,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014409343] [2022-03-01 17:09:02,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:02,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:02,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:02,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014409343] [2022-03-01 17:09:02,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014409343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:02,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:02,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:02,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926786208] [2022-03-01 17:09:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:02,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:02,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:02,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:02,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:02,937 INFO L87 Difference]: Start difference. First operand 1270 states and 4965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:03,004 INFO L93 Difference]: Finished difference Result 2449 states and 8929 transitions. [2022-03-01 17:09:03,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:03,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:03,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:03,009 INFO L225 Difference]: With dead ends: 2449 [2022-03-01 17:09:03,009 INFO L226 Difference]: Without dead ends: 2290 [2022-03-01 17:09:03,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:03,010 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:03,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 151 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:03,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-03-01 17:09:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1294. [2022-03-01 17:09:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.9048723897911835) internal successors, (5049), 1293 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5049 transitions. [2022-03-01 17:09:03,032 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5049 transitions. Word has length 25 [2022-03-01 17:09:03,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:03,032 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5049 transitions. [2022-03-01 17:09:03,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5049 transitions. [2022-03-01 17:09:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:03,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:03,034 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] [2022-03-01 17:09:03,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-03-01 17:09:03,034 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1219539625, now seen corresponding path program 446 times [2022-03-01 17:09:03,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:03,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569496176] [2022-03-01 17:09:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:03,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:03,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569496176] [2022-03-01 17:09:03,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569496176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:03,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:03,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:03,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703442653] [2022-03-01 17:09:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:03,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:03,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:03,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:03,116 INFO L87 Difference]: Start difference. First operand 1294 states and 5049 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:03,205 INFO L93 Difference]: Finished difference Result 2473 states and 9005 transitions. [2022-03-01 17:09:03,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:03,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:03,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:03,210 INFO L225 Difference]: With dead ends: 2473 [2022-03-01 17:09:03,210 INFO L226 Difference]: Without dead ends: 2274 [2022-03-01 17:09:03,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:03,211 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 136 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:03,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 134 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-03-01 17:09:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1278. [2022-03-01 17:09:03,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.9099451840250588) internal successors, (4993), 1277 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4993 transitions. [2022-03-01 17:09:03,232 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4993 transitions. Word has length 25 [2022-03-01 17:09:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:03,232 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4993 transitions. [2022-03-01 17:09:03,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4993 transitions. [2022-03-01 17:09:03,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:03,234 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:03,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:03,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-03-01 17:09:03,235 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:03,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:03,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1670581993, now seen corresponding path program 447 times [2022-03-01 17:09:03,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:03,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530797719] [2022-03-01 17:09:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:03,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:03,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:03,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:03,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530797719] [2022-03-01 17:09:03,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530797719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:03,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:03,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:03,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198076930] [2022-03-01 17:09:03,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:03,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:03,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:03,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:03,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:03,372 INFO L87 Difference]: Start difference. First operand 1278 states and 4993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:03,473 INFO L93 Difference]: Finished difference Result 2393 states and 8717 transitions. [2022-03-01 17:09:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:03,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:03,479 INFO L225 Difference]: With dead ends: 2393 [2022-03-01 17:09:03,480 INFO L226 Difference]: Without dead ends: 2234 [2022-03-01 17:09:03,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:03,480 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 108 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:03,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 148 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:03,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-03-01 17:09:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1294. [2022-03-01 17:09:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1293 states have (on average 3.8986852281515856) internal successors, (5041), 1293 states have internal predecessors, (5041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 5041 transitions. [2022-03-01 17:09:03,506 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 5041 transitions. Word has length 25 [2022-03-01 17:09:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:03,506 INFO L470 AbstractCegarLoop]: Abstraction has 1294 states and 5041 transitions. [2022-03-01 17:09:03,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 5041 transitions. [2022-03-01 17:09:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:03,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:03,508 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] [2022-03-01 17:09:03,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-03-01 17:09:03,509 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash 497415383, now seen corresponding path program 448 times [2022-03-01 17:09:03,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:03,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814712462] [2022-03-01 17:09:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:03,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:03,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:03,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814712462] [2022-03-01 17:09:03,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814712462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:03,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:03,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:03,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296006213] [2022-03-01 17:09:03,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:03,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:03,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:03,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:03,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:03,623 INFO L87 Difference]: Start difference. First operand 1294 states and 5041 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:03,714 INFO L93 Difference]: Finished difference Result 2281 states and 8380 transitions. [2022-03-01 17:09:03,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:03,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:03,719 INFO L225 Difference]: With dead ends: 2281 [2022-03-01 17:09:03,719 INFO L226 Difference]: Without dead ends: 2090 [2022-03-01 17:09:03,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:03,719 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:03,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 142 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-03-01 17:09:03,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1278. [2022-03-01 17:09:03,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 1277 states have (on average 3.903680501174628) internal successors, (4985), 1277 states have internal predecessors, (4985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 4985 transitions. [2022-03-01 17:09:03,739 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 4985 transitions. Word has length 25 [2022-03-01 17:09:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:03,739 INFO L470 AbstractCegarLoop]: Abstraction has 1278 states and 4985 transitions. [2022-03-01 17:09:03,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 4985 transitions. [2022-03-01 17:09:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:03,741 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:03,741 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] [2022-03-01 17:09:03,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-03-01 17:09:03,741 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1194837241, now seen corresponding path program 449 times [2022-03-01 17:09:03,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:03,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639299477] [2022-03-01 17:09:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:03,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:03,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:03,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639299477] [2022-03-01 17:09:03,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639299477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:03,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:03,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:03,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221898668] [2022-03-01 17:09:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:03,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:03,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:03,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:03,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:03,817 INFO L87 Difference]: Start difference. First operand 1278 states and 4985 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:03,893 INFO L93 Difference]: Finished difference Result 2297 states and 8452 transitions. [2022-03-01 17:09:03,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:03,898 INFO L225 Difference]: With dead ends: 2297 [2022-03-01 17:09:03,898 INFO L226 Difference]: Without dead ends: 2114 [2022-03-01 17:09:03,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:03,904 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 91 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:03,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 155 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2022-03-01 17:09:03,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 1302. [2022-03-01 17:09:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 3.890084550345888) internal successors, (5061), 1301 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 5061 transitions. [2022-03-01 17:09:03,925 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 5061 transitions. Word has length 25 [2022-03-01 17:09:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:03,925 INFO L470 AbstractCegarLoop]: Abstraction has 1302 states and 5061 transitions. [2022-03-01 17:09:03,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 5061 transitions. [2022-03-01 17:09:03,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:03,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:03,927 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] [2022-03-01 17:09:03,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-03-01 17:09:03,927 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:03,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:03,928 INFO L85 PathProgramCache]: Analyzing trace with hash -848499753, now seen corresponding path program 450 times [2022-03-01 17:09:03,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:03,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690566235] [2022-03-01 17:09:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:03,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:04,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:04,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690566235] [2022-03-01 17:09:04,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690566235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:04,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:04,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:04,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101714004] [2022-03-01 17:09:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:04,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:04,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:04,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:04,004 INFO L87 Difference]: Start difference. First operand 1302 states and 5061 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:04,089 INFO L93 Difference]: Finished difference Result 2113 states and 7839 transitions. [2022-03-01 17:09:04,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:04,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:04,093 INFO L225 Difference]: With dead ends: 2113 [2022-03-01 17:09:04,093 INFO L226 Difference]: Without dead ends: 1906 [2022-03-01 17:09:04,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:04,093 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 75 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:04,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 171 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:04,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-03-01 17:09:04,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1270. [2022-03-01 17:09:04,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.909377462568952) internal successors, (4961), 1269 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions. [2022-03-01 17:09:04,112 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25 [2022-03-01 17:09:04,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:04,112 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions. [2022-03-01 17:09:04,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions. [2022-03-01 17:09:04,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:04,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:04,114 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] [2022-03-01 17:09:04,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-03-01 17:09:04,114 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:04,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1860018951, now seen corresponding path program 451 times [2022-03-01 17:09:04,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:04,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642057074] [2022-03-01 17:09:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:04,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:04,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642057074] [2022-03-01 17:09:04,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642057074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:04,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:04,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:04,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848285479] [2022-03-01 17:09:04,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:04,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:04,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:04,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:04,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:04,189 INFO L87 Difference]: Start difference. First operand 1270 states and 4961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:04,255 INFO L93 Difference]: Finished difference Result 2345 states and 8652 transitions. [2022-03-01 17:09:04,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:04,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:04,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:04,260 INFO L225 Difference]: With dead ends: 2345 [2022-03-01 17:09:04,260 INFO L226 Difference]: Without dead ends: 2158 [2022-03-01 17:09:04,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:04,260 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 101 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:04,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 136 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-03-01 17:09:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1310. [2022-03-01 17:09:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1309 states have (on average 3.8999236058059585) internal successors, (5105), 1309 states have internal predecessors, (5105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 5105 transitions. [2022-03-01 17:09:04,282 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 5105 transitions. Word has length 25 [2022-03-01 17:09:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:04,282 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 5105 transitions. [2022-03-01 17:09:04,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 5105 transitions. [2022-03-01 17:09:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:04,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:04,284 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] [2022-03-01 17:09:04,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-03-01 17:09:04,284 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash 391611351, now seen corresponding path program 452 times [2022-03-01 17:09:04,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:04,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979145817] [2022-03-01 17:09:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:04,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:04,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:04,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:04,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979145817] [2022-03-01 17:09:04,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979145817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:04,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:04,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:04,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073089705] [2022-03-01 17:09:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:04,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:04,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:04,361 INFO L87 Difference]: Start difference. First operand 1310 states and 5105 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:04,437 INFO L93 Difference]: Finished difference Result 2341 states and 8612 transitions. [2022-03-01 17:09:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:04,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:04,441 INFO L225 Difference]: With dead ends: 2341 [2022-03-01 17:09:04,441 INFO L226 Difference]: Without dead ends: 2130 [2022-03-01 17:09:04,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:04,441 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 97 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:04,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 147 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:04,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-03-01 17:09:04,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1282. [2022-03-01 17:09:04,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.907103825136612) internal successors, (5005), 1281 states have internal predecessors, (5005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 5005 transitions. [2022-03-01 17:09:04,461 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 5005 transitions. Word has length 25 [2022-03-01 17:09:04,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:04,462 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 5005 transitions. [2022-03-01 17:09:04,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 5005 transitions. [2022-03-01 17:09:04,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:04,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:04,463 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] [2022-03-01 17:09:04,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-03-01 17:09:04,464 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:04,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:04,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1588151383, now seen corresponding path program 453 times [2022-03-01 17:09:04,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:04,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56503401] [2022-03-01 17:09:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:04,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:04,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:04,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56503401] [2022-03-01 17:09:04,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56503401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:04,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:04,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:04,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100307136] [2022-03-01 17:09:04,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:04,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:04,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:04,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:04,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:04,540 INFO L87 Difference]: Start difference. First operand 1282 states and 5005 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:04,609 INFO L93 Difference]: Finished difference Result 2257 states and 8308 transitions. [2022-03-01 17:09:04,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:04,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:04,613 INFO L225 Difference]: With dead ends: 2257 [2022-03-01 17:09:04,613 INFO L226 Difference]: Without dead ends: 2070 [2022-03-01 17:09:04,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:04,613 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:04,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 140 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-03-01 17:09:04,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1306. [2022-03-01 17:09:04,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.893486590038314) internal successors, (5081), 1305 states have internal predecessors, (5081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5081 transitions. [2022-03-01 17:09:04,634 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5081 transitions. Word has length 25 [2022-03-01 17:09:04,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:04,634 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5081 transitions. [2022-03-01 17:09:04,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5081 transitions. [2022-03-01 17:09:04,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:04,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:04,636 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] [2022-03-01 17:09:04,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-03-01 17:09:04,636 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:04,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:04,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1514349481, now seen corresponding path program 454 times [2022-03-01 17:09:04,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:04,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66540971] [2022-03-01 17:09:04,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:04,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:04,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66540971] [2022-03-01 17:09:04,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66540971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:04,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:04,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:04,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802125085] [2022-03-01 17:09:04,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:04,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:04,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:04,724 INFO L87 Difference]: Start difference. First operand 1306 states and 5081 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:04,797 INFO L93 Difference]: Finished difference Result 2117 states and 7859 transitions. [2022-03-01 17:09:04,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:04,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:04,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:04,801 INFO L225 Difference]: With dead ends: 2117 [2022-03-01 17:09:04,801 INFO L226 Difference]: Without dead ends: 1918 [2022-03-01 17:09:04,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:04,801 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 96 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:04,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 136 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-03-01 17:09:04,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1282. [2022-03-01 17:09:04,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.897736143637783) internal successors, (4993), 1281 states have internal predecessors, (4993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4993 transitions. [2022-03-01 17:09:04,821 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4993 transitions. Word has length 25 [2022-03-01 17:09:04,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:04,821 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4993 transitions. [2022-03-01 17:09:04,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4993 transitions. [2022-03-01 17:09:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:04,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:04,823 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] [2022-03-01 17:09:04,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-03-01 17:09:04,823 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:04,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:04,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1724468299, now seen corresponding path program 455 times [2022-03-01 17:09:04,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:04,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651749194] [2022-03-01 17:09:04,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:04,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:04,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:04,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651749194] [2022-03-01 17:09:04,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651749194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:04,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:04,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:04,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518229626] [2022-03-01 17:09:04,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:04,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:04,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:04,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:04,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:04,908 INFO L87 Difference]: Start difference. First operand 1282 states and 4993 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:04,980 INFO L93 Difference]: Finished difference Result 2045 states and 7595 transitions. [2022-03-01 17:09:04,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:04,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:04,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:04,984 INFO L225 Difference]: With dead ends: 2045 [2022-03-01 17:09:04,984 INFO L226 Difference]: Without dead ends: 1862 [2022-03-01 17:09:04,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:04,984 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 82 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:04,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 147 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:04,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2022-03-01 17:09:05,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1306. [2022-03-01 17:09:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.8842911877394637) internal successors, (5069), 1305 states have internal predecessors, (5069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5069 transitions. [2022-03-01 17:09:05,004 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5069 transitions. Word has length 25 [2022-03-01 17:09:05,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:05,004 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5069 transitions. [2022-03-01 17:09:05,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5069 transitions. [2022-03-01 17:09:05,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:05,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:05,006 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] [2022-03-01 17:09:05,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-03-01 17:09:05,006 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:05,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash -643405673, now seen corresponding path program 456 times [2022-03-01 17:09:05,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:05,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388846269] [2022-03-01 17:09:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:05,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:05,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:05,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388846269] [2022-03-01 17:09:05,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388846269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:05,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:05,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:05,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124718293] [2022-03-01 17:09:05,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:05,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:05,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:05,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:05,140 INFO L87 Difference]: Start difference. First operand 1306 states and 5069 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:05,255 INFO L93 Difference]: Finished difference Result 1861 states and 6982 transitions. [2022-03-01 17:09:05,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:05,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:05,259 INFO L225 Difference]: With dead ends: 1861 [2022-03-01 17:09:05,259 INFO L226 Difference]: Without dead ends: 1646 [2022-03-01 17:09:05,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:05,260 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 71 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:05,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 141 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:05,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-03-01 17:09:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1266. [2022-03-01 17:09:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 3.9138339920948617) internal successors, (4951), 1265 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4951 transitions. [2022-03-01 17:09:05,284 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4951 transitions. Word has length 25 [2022-03-01 17:09:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:05,284 INFO L470 AbstractCegarLoop]: Abstraction has 1266 states and 4951 transitions. [2022-03-01 17:09:05,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4951 transitions. [2022-03-01 17:09:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:05,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:05,287 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] [2022-03-01 17:09:05,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-03-01 17:09:05,287 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:05,287 INFO L85 PathProgramCache]: Analyzing trace with hash 62321913, now seen corresponding path program 457 times [2022-03-01 17:09:05,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:05,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161811416] [2022-03-01 17:09:05,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:05,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:05,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:05,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:05,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161811416] [2022-03-01 17:09:05,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161811416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:05,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:05,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:05,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430072252] [2022-03-01 17:09:05,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:05,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:05,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:05,391 INFO L87 Difference]: Start difference. First operand 1266 states and 4951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:05,466 INFO L93 Difference]: Finished difference Result 2910 states and 10765 transitions. [2022-03-01 17:09:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:05,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:05,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:05,473 INFO L225 Difference]: With dead ends: 2910 [2022-03-01 17:09:05,473 INFO L226 Difference]: Without dead ends: 2723 [2022-03-01 17:09:05,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:05,474 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:05,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 138 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:05,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2022-03-01 17:09:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 1316. [2022-03-01 17:09:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 3.9133079847908747) internal successors, (5146), 1315 states have internal predecessors, (5146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 5146 transitions. [2022-03-01 17:09:05,501 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 5146 transitions. Word has length 25 [2022-03-01 17:09:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:05,501 INFO L470 AbstractCegarLoop]: Abstraction has 1316 states and 5146 transitions. [2022-03-01 17:09:05,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 5146 transitions. [2022-03-01 17:09:05,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:05,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:05,503 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] [2022-03-01 17:09:05,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-03-01 17:09:05,503 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:05,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:05,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1981015081, now seen corresponding path program 458 times [2022-03-01 17:09:05,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:05,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925204893] [2022-03-01 17:09:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:05,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:05,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:05,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925204893] [2022-03-01 17:09:05,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925204893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:05,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:05,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:05,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704402450] [2022-03-01 17:09:05,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:05,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:05,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:05,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:05,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:05,587 INFO L87 Difference]: Start difference. First operand 1316 states and 5146 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:05,682 INFO L93 Difference]: Finished difference Result 2906 states and 10725 transitions. [2022-03-01 17:09:05,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:05,688 INFO L225 Difference]: With dead ends: 2906 [2022-03-01 17:09:05,688 INFO L226 Difference]: Without dead ends: 2695 [2022-03-01 17:09:05,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:05,688 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:05,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 146 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-03-01 17:09:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 1288. [2022-03-01 17:09:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.9207459207459205) internal successors, (5046), 1287 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 5046 transitions. [2022-03-01 17:09:05,715 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 5046 transitions. Word has length 25 [2022-03-01 17:09:05,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:05,715 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 5046 transitions. [2022-03-01 17:09:05,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 5046 transitions. [2022-03-01 17:09:05,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:05,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:05,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:05,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-03-01 17:09:05,717 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:05,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:05,717 INFO L85 PathProgramCache]: Analyzing trace with hash -784475049, now seen corresponding path program 459 times [2022-03-01 17:09:05,717 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:05,717 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505612470] [2022-03-01 17:09:05,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:05,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:05,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:05,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505612470] [2022-03-01 17:09:05,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505612470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:05,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:05,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:05,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477124142] [2022-03-01 17:09:05,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:05,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:05,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:05,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:05,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:05,799 INFO L87 Difference]: Start difference. First operand 1288 states and 5046 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:05,872 INFO L93 Difference]: Finished difference Result 2898 states and 10709 transitions. [2022-03-01 17:09:05,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:05,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:05,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:05,879 INFO L225 Difference]: With dead ends: 2898 [2022-03-01 17:09:05,879 INFO L226 Difference]: Without dead ends: 2711 [2022-03-01 17:09:05,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:05,879 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 116 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:05,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 137 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2022-03-01 17:09:05,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 1312. [2022-03-01 17:09:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 3.906941266209001) internal successors, (5122), 1311 states have internal predecessors, (5122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5122 transitions. [2022-03-01 17:09:05,905 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5122 transitions. Word has length 25 [2022-03-01 17:09:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:05,905 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5122 transitions. [2022-03-01 17:09:05,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5122 transitions. [2022-03-01 17:09:05,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:05,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:05,907 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] [2022-03-01 17:09:05,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-03-01 17:09:05,907 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:05,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:05,908 INFO L85 PathProgramCache]: Analyzing trace with hash 407991383, now seen corresponding path program 460 times [2022-03-01 17:09:05,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:05,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180156313] [2022-03-01 17:09:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:05,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:05,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:05,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180156313] [2022-03-01 17:09:05,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180156313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:05,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:05,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:05,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845159939] [2022-03-01 17:09:05,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:05,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:05,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:05,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:05,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:05,984 INFO L87 Difference]: Start difference. First operand 1312 states and 5122 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:06,061 INFO L93 Difference]: Finished difference Result 2886 states and 10645 transitions. [2022-03-01 17:09:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:06,067 INFO L225 Difference]: With dead ends: 2886 [2022-03-01 17:09:06,067 INFO L226 Difference]: Without dead ends: 2687 [2022-03-01 17:09:06,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:06,067 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 99 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:06,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 142 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2022-03-01 17:09:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 1288. [2022-03-01 17:09:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.9114219114219115) internal successors, (5034), 1287 states have internal predecessors, (5034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 5034 transitions. [2022-03-01 17:09:06,092 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 5034 transitions. Word has length 25 [2022-03-01 17:09:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:06,092 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 5034 transitions. [2022-03-01 17:09:06,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 5034 transitions. [2022-03-01 17:09:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:06,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:06,094 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] [2022-03-01 17:09:06,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-03-01 17:09:06,094 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:06,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:06,094 INFO L85 PathProgramCache]: Analyzing trace with hash 197872565, now seen corresponding path program 461 times [2022-03-01 17:09:06,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:06,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494828056] [2022-03-01 17:09:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:06,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:06,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:06,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494828056] [2022-03-01 17:09:06,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494828056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:06,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:06,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:06,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126986387] [2022-03-01 17:09:06,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:06,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:06,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:06,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:06,170 INFO L87 Difference]: Start difference. First operand 1288 states and 5034 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:06,251 INFO L93 Difference]: Finished difference Result 2890 states and 10673 transitions. [2022-03-01 17:09:06,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:06,251 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:06,258 INFO L225 Difference]: With dead ends: 2890 [2022-03-01 17:09:06,258 INFO L226 Difference]: Without dead ends: 2707 [2022-03-01 17:09:06,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:06,258 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 117 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:06,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 135 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:06,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2707 states. [2022-03-01 17:09:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2707 to 1312. [2022-03-01 17:09:06,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 3.8977879481311977) internal successors, (5110), 1311 states have internal predecessors, (5110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 5110 transitions. [2022-03-01 17:09:06,285 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 5110 transitions. Word has length 25 [2022-03-01 17:09:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:06,285 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 5110 transitions. [2022-03-01 17:09:06,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 5110 transitions. [2022-03-01 17:09:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:06,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:06,287 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] [2022-03-01 17:09:06,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-03-01 17:09:06,287 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:06,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1278935191, now seen corresponding path program 462 times [2022-03-01 17:09:06,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:06,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284574435] [2022-03-01 17:09:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:06,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:06,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:06,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:06,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284574435] [2022-03-01 17:09:06,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284574435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:06,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:06,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:06,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357269552] [2022-03-01 17:09:06,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:06,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:06,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:06,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:06,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:06,369 INFO L87 Difference]: Start difference. First operand 1312 states and 5110 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:06,443 INFO L93 Difference]: Finished difference Result 2882 states and 10621 transitions. [2022-03-01 17:09:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:06,443 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:06,450 INFO L225 Difference]: With dead ends: 2882 [2022-03-01 17:09:06,450 INFO L226 Difference]: Without dead ends: 2671 [2022-03-01 17:09:06,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:06,450 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 116 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:06,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 129 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-03-01 17:09:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 1276. [2022-03-01 17:09:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9184313725490196) internal successors, (4996), 1275 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4996 transitions. [2022-03-01 17:09:06,475 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4996 transitions. Word has length 25 [2022-03-01 17:09:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:06,475 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4996 transitions. [2022-03-01 17:09:06,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4996 transitions. [2022-03-01 17:09:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:06,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:06,477 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] [2022-03-01 17:09:06,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-03-01 17:09:06,478 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:06,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1901033001, now seen corresponding path program 463 times [2022-03-01 17:09:06,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:06,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047300315] [2022-03-01 17:09:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:06,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:06,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:06,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047300315] [2022-03-01 17:09:06,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047300315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:06,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:06,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:06,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819176009] [2022-03-01 17:09:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:06,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:06,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:06,557 INFO L87 Difference]: Start difference. First operand 1276 states and 4996 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:06,637 INFO L93 Difference]: Finished difference Result 2802 states and 10327 transitions. [2022-03-01 17:09:06,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:06,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:06,642 INFO L225 Difference]: With dead ends: 2802 [2022-03-01 17:09:06,642 INFO L226 Difference]: Without dead ends: 2615 [2022-03-01 17:09:06,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:06,643 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:06,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:06,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2022-03-01 17:09:06,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 1326. [2022-03-01 17:09:06,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1325 states have (on average 3.913207547169811) internal successors, (5185), 1325 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 5185 transitions. [2022-03-01 17:09:06,682 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 5185 transitions. Word has length 25 [2022-03-01 17:09:06,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:06,683 INFO L470 AbstractCegarLoop]: Abstraction has 1326 states and 5185 transitions. [2022-03-01 17:09:06,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 5185 transitions. [2022-03-01 17:09:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:06,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:06,685 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] [2022-03-01 17:09:06,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-03-01 17:09:06,685 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash 350597301, now seen corresponding path program 464 times [2022-03-01 17:09:06,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:06,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911012535] [2022-03-01 17:09:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:06,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:06,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911012535] [2022-03-01 17:09:06,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911012535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:06,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:06,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:06,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593303009] [2022-03-01 17:09:06,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:06,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:06,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:06,760 INFO L87 Difference]: Start difference. First operand 1326 states and 5185 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:06,840 INFO L93 Difference]: Finished difference Result 2798 states and 10287 transitions. [2022-03-01 17:09:06,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:06,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:06,846 INFO L225 Difference]: With dead ends: 2798 [2022-03-01 17:09:06,846 INFO L226 Difference]: Without dead ends: 2587 [2022-03-01 17:09:06,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:06,846 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 100 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:06,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 150 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:06,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2022-03-01 17:09:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1298. [2022-03-01 17:09:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.9190439475713186) internal successors, (5083), 1297 states have internal predecessors, (5083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5083 transitions. [2022-03-01 17:09:06,869 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5083 transitions. Word has length 25 [2022-03-01 17:09:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:06,869 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5083 transitions. [2022-03-01 17:09:06,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5083 transitions. [2022-03-01 17:09:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:06,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:06,871 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] [2022-03-01 17:09:06,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-03-01 17:09:06,871 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:06,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:06,872 INFO L85 PathProgramCache]: Analyzing trace with hash 487047639, now seen corresponding path program 465 times [2022-03-01 17:09:06,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:06,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759079517] [2022-03-01 17:09:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:06,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:06,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:06,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759079517] [2022-03-01 17:09:06,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759079517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:06,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:06,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:06,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446753517] [2022-03-01 17:09:06,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:06,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:06,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:06,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:06,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:06,959 INFO L87 Difference]: Start difference. First operand 1298 states and 5083 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:07,037 INFO L93 Difference]: Finished difference Result 2859 states and 10515 transitions. [2022-03-01 17:09:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:07,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:07,043 INFO L225 Difference]: With dead ends: 2859 [2022-03-01 17:09:07,043 INFO L226 Difference]: Without dead ends: 2672 [2022-03-01 17:09:07,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:07,043 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:07,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 137 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2022-03-01 17:09:07,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 1344. [2022-03-01 17:09:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1343 states have (on average 3.9017125837676843) internal successors, (5240), 1343 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 5240 transitions. [2022-03-01 17:09:07,068 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 5240 transitions. Word has length 25 [2022-03-01 17:09:07,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:07,068 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 5240 transitions. [2022-03-01 17:09:07,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 5240 transitions. [2022-03-01 17:09:07,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:07,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:07,070 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] [2022-03-01 17:09:07,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-03-01 17:09:07,071 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:07,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:07,071 INFO L85 PathProgramCache]: Analyzing trace with hash 567937495, now seen corresponding path program 466 times [2022-03-01 17:09:07,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:07,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531641563] [2022-03-01 17:09:07,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:07,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:07,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:07,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531641563] [2022-03-01 17:09:07,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531641563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:07,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:07,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:07,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194358909] [2022-03-01 17:09:07,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:07,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:07,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:07,151 INFO L87 Difference]: Start difference. First operand 1344 states and 5240 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:07,224 INFO L93 Difference]: Finished difference Result 2894 states and 10604 transitions. [2022-03-01 17:09:07,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:07,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:07,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:07,230 INFO L225 Difference]: With dead ends: 2894 [2022-03-01 17:09:07,230 INFO L226 Difference]: Without dead ends: 2626 [2022-03-01 17:09:07,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:07,230 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 102 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:07,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 150 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2022-03-01 17:09:07,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1298. [2022-03-01 17:09:07,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.902081727062452) internal successors, (5061), 1297 states have internal predecessors, (5061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5061 transitions. [2022-03-01 17:09:07,254 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5061 transitions. Word has length 25 [2022-03-01 17:09:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:07,254 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5061 transitions. [2022-03-01 17:09:07,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5061 transitions. [2022-03-01 17:09:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:07,256 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:07,256 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] [2022-03-01 17:09:07,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-03-01 17:09:07,256 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1469395253, now seen corresponding path program 467 times [2022-03-01 17:09:07,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:07,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501467451] [2022-03-01 17:09:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:07,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:07,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501467451] [2022-03-01 17:09:07,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501467451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:07,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:07,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:07,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235446378] [2022-03-01 17:09:07,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:07,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:07,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:07,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:07,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:07,333 INFO L87 Difference]: Start difference. First operand 1298 states and 5061 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:07,408 INFO L93 Difference]: Finished difference Result 2849 states and 10462 transitions. [2022-03-01 17:09:07,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:07,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:07,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:07,413 INFO L225 Difference]: With dead ends: 2849 [2022-03-01 17:09:07,413 INFO L226 Difference]: Without dead ends: 2666 [2022-03-01 17:09:07,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:07,414 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 115 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:07,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 138 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:07,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2022-03-01 17:09:07,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 1342. [2022-03-01 17:09:07,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.8873974645786724) internal successors, (5213), 1341 states have internal predecessors, (5213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 5213 transitions. [2022-03-01 17:09:07,438 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 5213 transitions. Word has length 25 [2022-03-01 17:09:07,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:07,438 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 5213 transitions. [2022-03-01 17:09:07,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 5213 transitions. [2022-03-01 17:09:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:07,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:07,440 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] [2022-03-01 17:09:07,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-03-01 17:09:07,440 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:07,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash 399876247, now seen corresponding path program 468 times [2022-03-01 17:09:07,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:07,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773660804] [2022-03-01 17:09:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:07,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:07,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:07,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773660804] [2022-03-01 17:09:07,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773660804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:07,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:07,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:07,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658090504] [2022-03-01 17:09:07,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:07,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:07,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:07,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:07,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:07,520 INFO L87 Difference]: Start difference. First operand 1342 states and 5213 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:07,588 INFO L93 Difference]: Finished difference Result 2888 states and 10565 transitions. [2022-03-01 17:09:07,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:07,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:07,594 INFO L225 Difference]: With dead ends: 2888 [2022-03-01 17:09:07,594 INFO L226 Difference]: Without dead ends: 2600 [2022-03-01 17:09:07,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:07,594 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 125 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:07,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 125 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2022-03-01 17:09:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 1276. [2022-03-01 17:09:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9105882352941177) internal successors, (4986), 1275 states have internal predecessors, (4986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4986 transitions. [2022-03-01 17:09:07,617 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4986 transitions. Word has length 25 [2022-03-01 17:09:07,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:07,617 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4986 transitions. [2022-03-01 17:09:07,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4986 transitions. [2022-03-01 17:09:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:07,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:07,619 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] [2022-03-01 17:09:07,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-03-01 17:09:07,619 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:07,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1537186229, now seen corresponding path program 469 times [2022-03-01 17:09:07,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:07,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744267408] [2022-03-01 17:09:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:07,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:07,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:07,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:07,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744267408] [2022-03-01 17:09:07,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744267408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:07,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:07,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:07,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602865482] [2022-03-01 17:09:07,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:07,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:07,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:07,714 INFO L87 Difference]: Start difference. First operand 1276 states and 4986 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:07,791 INFO L93 Difference]: Finished difference Result 2756 states and 10128 transitions. [2022-03-01 17:09:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:07,796 INFO L225 Difference]: With dead ends: 2756 [2022-03-01 17:09:07,796 INFO L226 Difference]: Without dead ends: 2569 [2022-03-01 17:09:07,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:07,796 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:07,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 144 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2022-03-01 17:09:07,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 1320. [2022-03-01 17:09:07,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 3.907505686125853) internal successors, (5154), 1319 states have internal predecessors, (5154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5154 transitions. [2022-03-01 17:09:07,820 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5154 transitions. Word has length 25 [2022-03-01 17:09:07,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:07,820 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5154 transitions. [2022-03-01 17:09:07,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5154 transitions. [2022-03-01 17:09:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:07,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:07,822 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] [2022-03-01 17:09:07,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-03-01 17:09:07,823 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:07,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1565314635, now seen corresponding path program 470 times [2022-03-01 17:09:07,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:07,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954560572] [2022-03-01 17:09:07,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:07,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:07,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:07,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954560572] [2022-03-01 17:09:07,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954560572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:07,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:07,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:07,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744023837] [2022-03-01 17:09:07,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:07,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:07,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:07,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:07,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:07,896 INFO L87 Difference]: Start difference. First operand 1320 states and 5154 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:07,969 INFO L93 Difference]: Finished difference Result 2744 states and 10064 transitions. [2022-03-01 17:09:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:07,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:07,975 INFO L225 Difference]: With dead ends: 2744 [2022-03-01 17:09:07,975 INFO L226 Difference]: Without dead ends: 2545 [2022-03-01 17:09:07,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:07,976 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 106 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:07,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 140 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:07,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2022-03-01 17:09:07,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1296. [2022-03-01 17:09:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.911969111969112) internal successors, (5066), 1295 states have internal predecessors, (5066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5066 transitions. [2022-03-01 17:09:08,000 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5066 transitions. Word has length 25 [2022-03-01 17:09:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,000 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5066 transitions. [2022-03-01 17:09:08,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5066 transitions. [2022-03-01 17:09:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:08,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,002 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] [2022-03-01 17:09:08,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-03-01 17:09:08,002 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:08,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash 919662871, now seen corresponding path program 471 times [2022-03-01 17:09:08,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435580785] [2022-03-01 17:09:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:08,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:08,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435580785] [2022-03-01 17:09:08,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435580785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:08,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:08,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:08,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773673554] [2022-03-01 17:09:08,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:08,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:08,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:08,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:08,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:08,086 INFO L87 Difference]: Start difference. First operand 1296 states and 5066 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:08,168 INFO L93 Difference]: Finished difference Result 2779 states and 10175 transitions. [2022-03-01 17:09:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:08,174 INFO L225 Difference]: With dead ends: 2779 [2022-03-01 17:09:08,174 INFO L226 Difference]: Without dead ends: 2592 [2022-03-01 17:09:08,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:08,174 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:08,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 156 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2022-03-01 17:09:08,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 1342. [2022-03-01 17:09:08,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1341 states have (on average 3.894854586129754) internal successors, (5223), 1341 states have internal predecessors, (5223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 5223 transitions. [2022-03-01 17:09:08,198 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 5223 transitions. Word has length 25 [2022-03-01 17:09:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,198 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 5223 transitions. [2022-03-01 17:09:08,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 5223 transitions. [2022-03-01 17:09:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:08,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,200 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] [2022-03-01 17:09:08,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-03-01 17:09:08,200 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:08,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1455124043, now seen corresponding path program 472 times [2022-03-01 17:09:08,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18248700] [2022-03-01 17:09:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:08,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:08,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18248700] [2022-03-01 17:09:08,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18248700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:08,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:08,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:08,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435864538] [2022-03-01 17:09:08,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:08,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:08,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:08,275 INFO L87 Difference]: Start difference. First operand 1342 states and 5223 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:08,347 INFO L93 Difference]: Finished difference Result 2814 states and 10264 transitions. [2022-03-01 17:09:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:08,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:08,352 INFO L225 Difference]: With dead ends: 2814 [2022-03-01 17:09:08,352 INFO L226 Difference]: Without dead ends: 2546 [2022-03-01 17:09:08,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:08,353 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 115 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:08,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2022-03-01 17:09:08,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1296. [2022-03-01 17:09:08,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.8965250965250964) internal successors, (5046), 1295 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5046 transitions. [2022-03-01 17:09:08,376 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5046 transitions. Word has length 25 [2022-03-01 17:09:08,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,376 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5046 transitions. [2022-03-01 17:09:08,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5046 transitions. [2022-03-01 17:09:08,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:08,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,378 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] [2022-03-01 17:09:08,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-03-01 17:09:08,378 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:08,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1139574347, now seen corresponding path program 473 times [2022-03-01 17:09:08,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354854312] [2022-03-01 17:09:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:08,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:08,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:08,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354854312] [2022-03-01 17:09:08,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354854312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:08,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:08,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:08,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013078660] [2022-03-01 17:09:08,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:08,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:08,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:08,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:08,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:08,455 INFO L87 Difference]: Start difference. First operand 1296 states and 5046 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:08,549 INFO L93 Difference]: Finished difference Result 2749 states and 10052 transitions. [2022-03-01 17:09:08,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:08,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:08,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:08,555 INFO L225 Difference]: With dead ends: 2749 [2022-03-01 17:09:08,555 INFO L226 Difference]: Without dead ends: 2574 [2022-03-01 17:09:08,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:08,555 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 113 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:08,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 149 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:08,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2022-03-01 17:09:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 1336. [2022-03-01 17:09:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.884644194756554) internal successors, (5186), 1335 states have internal predecessors, (5186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5186 transitions. [2022-03-01 17:09:08,580 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5186 transitions. Word has length 25 [2022-03-01 17:09:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,580 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5186 transitions. [2022-03-01 17:09:08,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5186 transitions. [2022-03-01 17:09:08,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:08,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,582 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] [2022-03-01 17:09:08,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-03-01 17:09:08,583 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:08,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash -921222761, now seen corresponding path program 474 times [2022-03-01 17:09:08,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095472641] [2022-03-01 17:09:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:08,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:08,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:08,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095472641] [2022-03-01 17:09:08,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095472641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:08,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:08,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:08,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813325153] [2022-03-01 17:09:08,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:08,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:08,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:08,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:08,658 INFO L87 Difference]: Start difference. First operand 1336 states and 5186 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:08,730 INFO L93 Difference]: Finished difference Result 2701 states and 9852 transitions. [2022-03-01 17:09:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:08,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:08,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:08,735 INFO L225 Difference]: With dead ends: 2701 [2022-03-01 17:09:08,735 INFO L226 Difference]: Without dead ends: 2419 [2022-03-01 17:09:08,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:08,735 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 112 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:08,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 133 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:08,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2419 states. [2022-03-01 17:09:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2419 to 1276. [2022-03-01 17:09:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9027450980392158) internal successors, (4976), 1275 states have internal predecessors, (4976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4976 transitions. [2022-03-01 17:09:08,758 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4976 transitions. Word has length 25 [2022-03-01 17:09:08,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,758 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4976 transitions. [2022-03-01 17:09:08,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4976 transitions. [2022-03-01 17:09:08,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:08,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,760 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] [2022-03-01 17:09:08,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-03-01 17:09:08,760 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:08,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1785384557, now seen corresponding path program 475 times [2022-03-01 17:09:08,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693586621] [2022-03-01 17:09:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:08,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:08,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693586621] [2022-03-01 17:09:08,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693586621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:08,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:08,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:08,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727606651] [2022-03-01 17:09:08,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:08,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:08,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:08,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:08,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:08,836 INFO L87 Difference]: Start difference. First operand 1276 states and 4976 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:08,908 INFO L93 Difference]: Finished difference Result 2678 states and 9803 transitions. [2022-03-01 17:09:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:08,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:08,913 INFO L225 Difference]: With dead ends: 2678 [2022-03-01 17:09:08,913 INFO L226 Difference]: Without dead ends: 2495 [2022-03-01 17:09:08,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:08,914 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 118 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:08,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 130 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2022-03-01 17:09:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 1320. [2022-03-01 17:09:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 3.899924184988628) internal successors, (5144), 1319 states have internal predecessors, (5144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 5144 transitions. [2022-03-01 17:09:08,937 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 5144 transitions. Word has length 25 [2022-03-01 17:09:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:08,937 INFO L470 AbstractCegarLoop]: Abstraction has 1320 states and 5144 transitions. [2022-03-01 17:09:08,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 5144 transitions. [2022-03-01 17:09:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:08,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:08,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:08,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-03-01 17:09:08,939 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:08,940 INFO L85 PathProgramCache]: Analyzing trace with hash -704321931, now seen corresponding path program 476 times [2022-03-01 17:09:08,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:08,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583005343] [2022-03-01 17:09:08,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:08,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:09,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:09,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583005343] [2022-03-01 17:09:09,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583005343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:09,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:09,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:09,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86126781] [2022-03-01 17:09:09,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:09,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:09,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:09,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:09,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:09,018 INFO L87 Difference]: Start difference. First operand 1320 states and 5144 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:09,099 INFO L93 Difference]: Finished difference Result 2670 states and 9751 transitions. [2022-03-01 17:09:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:09,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:09,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:09,104 INFO L225 Difference]: With dead ends: 2670 [2022-03-01 17:09:09,104 INFO L226 Difference]: Without dead ends: 2471 [2022-03-01 17:09:09,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:09,105 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 104 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:09,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 152 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2022-03-01 17:09:09,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 1296. [2022-03-01 17:09:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.904247104247104) internal successors, (5056), 1295 states have internal predecessors, (5056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5056 transitions. [2022-03-01 17:09:09,128 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5056 transitions. Word has length 25 [2022-03-01 17:09:09,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:09,128 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5056 transitions. [2022-03-01 17:09:09,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5056 transitions. [2022-03-01 17:09:09,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:09,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:09,130 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] [2022-03-01 17:09:09,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-03-01 17:09:09,130 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:09,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1892059381, now seen corresponding path program 477 times [2022-03-01 17:09:09,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:09,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284503166] [2022-03-01 17:09:09,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:09,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:09,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:09,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:09,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284503166] [2022-03-01 17:09:09,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284503166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:09,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:09,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:09,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472493795] [2022-03-01 17:09:09,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:09,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:09,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:09,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:09,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:09,224 INFO L87 Difference]: Start difference. First operand 1296 states and 5056 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:09,303 INFO L93 Difference]: Finished difference Result 2606 states and 9515 transitions. [2022-03-01 17:09:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:09,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:09,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:09,309 INFO L225 Difference]: With dead ends: 2606 [2022-03-01 17:09:09,310 INFO L226 Difference]: Without dead ends: 2423 [2022-03-01 17:09:09,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:09,310 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 114 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:09,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 138 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:09,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2022-03-01 17:09:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 1340. [2022-03-01 17:09:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1339 states have (on average 3.8894697535474236) internal successors, (5208), 1339 states have internal predecessors, (5208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 5208 transitions. [2022-03-01 17:09:09,335 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 5208 transitions. Word has length 25 [2022-03-01 17:09:09,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:09,335 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 5208 transitions. [2022-03-01 17:09:09,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 5208 transitions. [2022-03-01 17:09:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:09,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:09,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:09,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-03-01 17:09:09,337 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:09,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:09,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1633136395, now seen corresponding path program 478 times [2022-03-01 17:09:09,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:09,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261613213] [2022-03-01 17:09:09,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:09,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:09,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:09,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261613213] [2022-03-01 17:09:09,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261613213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:09,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:09,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:09,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298838427] [2022-03-01 17:09:09,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:09,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:09,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:09,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:09,446 INFO L87 Difference]: Start difference. First operand 1340 states and 5208 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:09,536 INFO L93 Difference]: Finished difference Result 2645 states and 9618 transitions. [2022-03-01 17:09:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:09,542 INFO L225 Difference]: With dead ends: 2645 [2022-03-01 17:09:09,542 INFO L226 Difference]: Without dead ends: 2379 [2022-03-01 17:09:09,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:09,542 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:09,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 133 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:09,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2022-03-01 17:09:09,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 1296. [2022-03-01 17:09:09,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 1295 states have (on average 3.8888030888030887) internal successors, (5036), 1295 states have internal predecessors, (5036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 5036 transitions. [2022-03-01 17:09:09,588 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 5036 transitions. Word has length 25 [2022-03-01 17:09:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:09,588 INFO L470 AbstractCegarLoop]: Abstraction has 1296 states and 5036 transitions. [2022-03-01 17:09:09,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 5036 transitions. [2022-03-01 17:09:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:09,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:09,590 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] [2022-03-01 17:09:09,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-03-01 17:09:09,590 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2014902953, now seen corresponding path program 479 times [2022-03-01 17:09:09,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:09,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735179090] [2022-03-01 17:09:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:09,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:09,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:09,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735179090] [2022-03-01 17:09:09,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735179090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:09,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:09,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:09,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482723726] [2022-03-01 17:09:09,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:09,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:09,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:09,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:09,712 INFO L87 Difference]: Start difference. First operand 1296 states and 5036 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:09,816 INFO L93 Difference]: Finished difference Result 2546 states and 9259 transitions. [2022-03-01 17:09:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:09,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:09,822 INFO L225 Difference]: With dead ends: 2546 [2022-03-01 17:09:09,822 INFO L226 Difference]: Without dead ends: 2371 [2022-03-01 17:09:09,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:09,823 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 99 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:09,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 145 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-03-01 17:09:09,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1336. [2022-03-01 17:09:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 3.8771535580524343) internal successors, (5176), 1335 states have internal predecessors, (5176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 5176 transitions. [2022-03-01 17:09:09,849 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 5176 transitions. Word has length 25 [2022-03-01 17:09:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:09,849 INFO L470 AbstractCegarLoop]: Abstraction has 1336 states and 5176 transitions. [2022-03-01 17:09:09,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 5176 transitions. [2022-03-01 17:09:09,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:09,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:09,852 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] [2022-03-01 17:09:09,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-03-01 17:09:09,852 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:09,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 459028917, now seen corresponding path program 480 times [2022-03-01 17:09:09,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:09,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799214926] [2022-03-01 17:09:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:09,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:09,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:09,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799214926] [2022-03-01 17:09:09,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799214926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:09,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:09,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:09,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765160805] [2022-03-01 17:09:09,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:09,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:09,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:09,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:09,979 INFO L87 Difference]: Start difference. First operand 1336 states and 5176 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:10,098 INFO L93 Difference]: Finished difference Result 2498 states and 9059 transitions. [2022-03-01 17:09:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:10,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:10,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:10,103 INFO L225 Difference]: With dead ends: 2498 [2022-03-01 17:09:10,103 INFO L226 Difference]: Without dead ends: 2202 [2022-03-01 17:09:10,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:10,104 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:10,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 142 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2022-03-01 17:09:10,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1262. [2022-03-01 17:09:10,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.9183187946074542) internal successors, (4941), 1261 states have internal predecessors, (4941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4941 transitions. [2022-03-01 17:09:10,126 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4941 transitions. Word has length 25 [2022-03-01 17:09:10,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:10,126 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4941 transitions. [2022-03-01 17:09:10,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4941 transitions. [2022-03-01 17:09:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:10,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:10,128 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] [2022-03-01 17:09:10,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-03-01 17:09:10,128 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:10,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:10,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1249862383, now seen corresponding path program 481 times [2022-03-01 17:09:10,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:10,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014288660] [2022-03-01 17:09:10,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:10,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:10,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:10,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014288660] [2022-03-01 17:09:10,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014288660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:10,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:10,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:10,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780734479] [2022-03-01 17:09:10,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:10,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:10,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:10,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:10,239 INFO L87 Difference]: Start difference. First operand 1262 states and 4941 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:10,318 INFO L93 Difference]: Finished difference Result 2545 states and 9271 transitions. [2022-03-01 17:09:10,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:10,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:10,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:10,323 INFO L225 Difference]: With dead ends: 2545 [2022-03-01 17:09:10,323 INFO L226 Difference]: Without dead ends: 2386 [2022-03-01 17:09:10,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:10,323 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:10,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 148 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:10,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2022-03-01 17:09:10,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1286. [2022-03-01 17:09:10,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9105058365758754) internal successors, (5025), 1285 states have internal predecessors, (5025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5025 transitions. [2022-03-01 17:09:10,345 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5025 transitions. Word has length 25 [2022-03-01 17:09:10,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:10,345 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5025 transitions. [2022-03-01 17:09:10,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5025 transitions. [2022-03-01 17:09:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:10,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:10,347 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] [2022-03-01 17:09:10,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-03-01 17:09:10,347 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:10,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash -340072367, now seen corresponding path program 482 times [2022-03-01 17:09:10,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:10,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785159259] [2022-03-01 17:09:10,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:10,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:10,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:10,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785159259] [2022-03-01 17:09:10,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785159259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:10,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:10,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:10,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044853644] [2022-03-01 17:09:10,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:10,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:10,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:10,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:10,455 INFO L87 Difference]: Start difference. First operand 1286 states and 5025 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:10,540 INFO L93 Difference]: Finished difference Result 2575 states and 9364 transitions. [2022-03-01 17:09:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:10,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:10,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:10,545 INFO L225 Difference]: With dead ends: 2575 [2022-03-01 17:09:10,545 INFO L226 Difference]: Without dead ends: 2370 [2022-03-01 17:09:10,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:10,546 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 143 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:10,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 131 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:10,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-03-01 17:09:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 1270. [2022-03-01 17:09:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9156816390858946) internal successors, (4969), 1269 states have internal predecessors, (4969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4969 transitions. [2022-03-01 17:09:10,568 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4969 transitions. Word has length 25 [2022-03-01 17:09:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:10,568 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4969 transitions. [2022-03-01 17:09:10,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4969 transitions. [2022-03-01 17:09:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:10,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:10,570 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] [2022-03-01 17:09:10,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-03-01 17:09:10,570 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:10,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1964042287, now seen corresponding path program 483 times [2022-03-01 17:09:10,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:10,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104090329] [2022-03-01 17:09:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:10,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:10,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:10,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104090329] [2022-03-01 17:09:10,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104090329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:10,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:10,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:10,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981214161] [2022-03-01 17:09:10,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:10,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:10,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:10,671 INFO L87 Difference]: Start difference. First operand 1270 states and 4969 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:10,751 INFO L93 Difference]: Finished difference Result 2543 states and 9258 transitions. [2022-03-01 17:09:10,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:10,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:10,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:10,756 INFO L225 Difference]: With dead ends: 2543 [2022-03-01 17:09:10,756 INFO L226 Difference]: Without dead ends: 2384 [2022-03-01 17:09:10,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:10,756 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 119 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:10,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 145 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:10,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2022-03-01 17:09:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 1286. [2022-03-01 17:09:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9042801556420232) internal successors, (5017), 1285 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5017 transitions. [2022-03-01 17:09:10,778 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5017 transitions. Word has length 25 [2022-03-01 17:09:10,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:10,778 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5017 transitions. [2022-03-01 17:09:10,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5017 transitions. [2022-03-01 17:09:10,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:10,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:10,780 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] [2022-03-01 17:09:10,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-03-01 17:09:10,780 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:10,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash -955744303, now seen corresponding path program 484 times [2022-03-01 17:09:10,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:10,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497072852] [2022-03-01 17:09:10,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:10,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:10,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:10,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497072852] [2022-03-01 17:09:10,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497072852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:10,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:10,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:10,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199712491] [2022-03-01 17:09:10,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:10,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:10,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:10,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:10,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:10,880 INFO L87 Difference]: Start difference. First operand 1286 states and 5017 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:10,973 INFO L93 Difference]: Finished difference Result 2571 states and 9346 transitions. [2022-03-01 17:09:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:10,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:10,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:10,979 INFO L225 Difference]: With dead ends: 2571 [2022-03-01 17:09:10,979 INFO L226 Difference]: Without dead ends: 2368 [2022-03-01 17:09:10,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:10,979 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:10,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 156 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:10,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2022-03-01 17:09:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 1270. [2022-03-01 17:09:10,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.909377462568952) internal successors, (4961), 1269 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions. [2022-03-01 17:09:11,001 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25 [2022-03-01 17:09:11,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:11,002 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions. [2022-03-01 17:09:11,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions. [2022-03-01 17:09:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:11,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:11,004 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] [2022-03-01 17:09:11,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-03-01 17:09:11,004 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:11,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash -546880333, now seen corresponding path program 485 times [2022-03-01 17:09:11,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:11,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611961088] [2022-03-01 17:09:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:11,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:11,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:11,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611961088] [2022-03-01 17:09:11,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611961088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:11,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:11,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:11,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812158743] [2022-03-01 17:09:11,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:11,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:11,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:11,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:11,103 INFO L87 Difference]: Start difference. First operand 1270 states and 4961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:11,202 INFO L93 Difference]: Finished difference Result 2617 states and 9527 transitions. [2022-03-01 17:09:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:11,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:11,208 INFO L225 Difference]: With dead ends: 2617 [2022-03-01 17:09:11,208 INFO L226 Difference]: Without dead ends: 2428 [2022-03-01 17:09:11,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:11,209 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:11,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-03-01 17:09:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1300. [2022-03-01 17:09:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1299 states have (on average 3.890685142417244) internal successors, (5054), 1299 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 5054 transitions. [2022-03-01 17:09:11,235 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 5054 transitions. Word has length 25 [2022-03-01 17:09:11,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:11,236 INFO L470 AbstractCegarLoop]: Abstraction has 1300 states and 5054 transitions. [2022-03-01 17:09:11,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 5054 transitions. [2022-03-01 17:09:11,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:11,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:11,238 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] [2022-03-01 17:09:11,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-03-01 17:09:11,238 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:11,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:11,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1704749969, now seen corresponding path program 486 times [2022-03-01 17:09:11,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:11,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169258676] [2022-03-01 17:09:11,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:11,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:11,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:11,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169258676] [2022-03-01 17:09:11,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169258676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:11,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:11,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:11,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860064280] [2022-03-01 17:09:11,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:11,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:11,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:11,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:11,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:11,372 INFO L87 Difference]: Start difference. First operand 1300 states and 5054 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:11,487 INFO L93 Difference]: Finished difference Result 2615 states and 9492 transitions. [2022-03-01 17:09:11,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:11,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:11,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:11,493 INFO L225 Difference]: With dead ends: 2615 [2022-03-01 17:09:11,493 INFO L226 Difference]: Without dead ends: 2390 [2022-03-01 17:09:11,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:11,494 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 113 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:11,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 144 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:11,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-03-01 17:09:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 1262. [2022-03-01 17:09:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.915146708961142) internal successors, (4937), 1261 states have internal predecessors, (4937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4937 transitions. [2022-03-01 17:09:11,518 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4937 transitions. Word has length 25 [2022-03-01 17:09:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:11,518 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4937 transitions. [2022-03-01 17:09:11,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4937 transitions. [2022-03-01 17:09:11,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:11,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:11,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:11,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-03-01 17:09:11,520 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:11,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash 768960337, now seen corresponding path program 487 times [2022-03-01 17:09:11,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:11,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031757375] [2022-03-01 17:09:11,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:11,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:11,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:11,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031757375] [2022-03-01 17:09:11,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031757375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:11,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:11,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:11,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127250490] [2022-03-01 17:09:11,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:11,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:11,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:11,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:11,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:11,639 INFO L87 Difference]: Start difference. First operand 1262 states and 4937 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:11,735 INFO L93 Difference]: Finished difference Result 2539 states and 9248 transitions. [2022-03-01 17:09:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:11,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:11,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:11,741 INFO L225 Difference]: With dead ends: 2539 [2022-03-01 17:09:11,741 INFO L226 Difference]: Without dead ends: 2380 [2022-03-01 17:09:11,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:11,741 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:11,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 147 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-03-01 17:09:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1286. [2022-03-01 17:09:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9073929961089493) internal successors, (5021), 1285 states have internal predecessors, (5021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5021 transitions. [2022-03-01 17:09:11,767 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5021 transitions. Word has length 25 [2022-03-01 17:09:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:11,767 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5021 transitions. [2022-03-01 17:09:11,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5021 transitions. [2022-03-01 17:09:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:11,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:11,769 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] [2022-03-01 17:09:11,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-03-01 17:09:11,769 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:11,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:11,769 INFO L85 PathProgramCache]: Analyzing trace with hash -820974413, now seen corresponding path program 488 times [2022-03-01 17:09:11,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:11,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644370571] [2022-03-01 17:09:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:11,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:11,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:11,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644370571] [2022-03-01 17:09:11,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644370571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:11,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:11,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:11,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466623524] [2022-03-01 17:09:11,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:11,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:11,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:11,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:11,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:11,888 INFO L87 Difference]: Start difference. First operand 1286 states and 5021 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:12,000 INFO L93 Difference]: Finished difference Result 2569 states and 9341 transitions. [2022-03-01 17:09:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:12,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:12,006 INFO L225 Difference]: With dead ends: 2569 [2022-03-01 17:09:12,006 INFO L226 Difference]: Without dead ends: 2364 [2022-03-01 17:09:12,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:12,007 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 114 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:12,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 146 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2022-03-01 17:09:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 1270. [2022-03-01 17:09:12,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9125295508274234) internal successors, (4965), 1269 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4965 transitions. [2022-03-01 17:09:12,033 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4965 transitions. Word has length 25 [2022-03-01 17:09:12,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:12,033 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4965 transitions. [2022-03-01 17:09:12,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4965 transitions. [2022-03-01 17:09:12,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:12,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:12,035 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] [2022-03-01 17:09:12,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-03-01 17:09:12,035 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:12,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:12,035 INFO L85 PathProgramCache]: Analyzing trace with hash -919285935, now seen corresponding path program 489 times [2022-03-01 17:09:12,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:12,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928943205] [2022-03-01 17:09:12,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:12,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:12,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928943205] [2022-03-01 17:09:12,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928943205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:12,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:12,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:12,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920712134] [2022-03-01 17:09:12,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:12,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:12,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:12,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:12,116 INFO L87 Difference]: Start difference. First operand 1270 states and 4965 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:12,207 INFO L93 Difference]: Finished difference Result 2533 states and 9223 transitions. [2022-03-01 17:09:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:12,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:12,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:12,213 INFO L225 Difference]: With dead ends: 2533 [2022-03-01 17:09:12,213 INFO L226 Difference]: Without dead ends: 2374 [2022-03-01 17:09:12,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:12,213 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:12,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 177 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-03-01 17:09:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1286. [2022-03-01 17:09:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.901167315175097) internal successors, (5013), 1285 states have internal predecessors, (5013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5013 transitions. [2022-03-01 17:09:12,238 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5013 transitions. Word has length 25 [2022-03-01 17:09:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:12,238 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5013 transitions. [2022-03-01 17:09:12,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5013 transitions. [2022-03-01 17:09:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:12,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:12,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:12,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-03-01 17:09:12,241 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:12,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:12,241 INFO L85 PathProgramCache]: Analyzing trace with hash 761210705, now seen corresponding path program 490 times [2022-03-01 17:09:12,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:12,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719663809] [2022-03-01 17:09:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:12,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:12,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:12,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719663809] [2022-03-01 17:09:12,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719663809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:12,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:12,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:12,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696805857] [2022-03-01 17:09:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:12,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:12,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:12,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:12,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:12,317 INFO L87 Difference]: Start difference. First operand 1286 states and 5013 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:12,400 INFO L93 Difference]: Finished difference Result 2557 states and 9299 transitions. [2022-03-01 17:09:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:12,400 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:12,406 INFO L225 Difference]: With dead ends: 2557 [2022-03-01 17:09:12,406 INFO L226 Difference]: Without dead ends: 2358 [2022-03-01 17:09:12,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:12,407 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:12,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 146 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:12,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2022-03-01 17:09:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 1270. [2022-03-01 17:09:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.906225374310481) internal successors, (4957), 1269 states have internal predecessors, (4957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4957 transitions. [2022-03-01 17:09:12,432 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4957 transitions. Word has length 25 [2022-03-01 17:09:12,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:12,432 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4957 transitions. [2022-03-01 17:09:12,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4957 transitions. [2022-03-01 17:09:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:12,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:12,435 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] [2022-03-01 17:09:12,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-03-01 17:09:12,435 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:12,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:12,435 INFO L85 PathProgramCache]: Analyzing trace with hash 497876019, now seen corresponding path program 491 times [2022-03-01 17:09:12,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:12,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232038745] [2022-03-01 17:09:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:12,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:12,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232038745] [2022-03-01 17:09:12,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232038745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:12,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:12,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:12,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295329844] [2022-03-01 17:09:12,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:12,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:12,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:12,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:12,526 INFO L87 Difference]: Start difference. First operand 1270 states and 4957 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:12,602 INFO L93 Difference]: Finished difference Result 2605 states and 9485 transitions. [2022-03-01 17:09:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:12,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:12,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:12,608 INFO L225 Difference]: With dead ends: 2605 [2022-03-01 17:09:12,608 INFO L226 Difference]: Without dead ends: 2416 [2022-03-01 17:09:12,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:12,609 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:12,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-03-01 17:09:12,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 1298. [2022-03-01 17:09:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.889745566692367) internal successors, (5045), 1297 states have internal predecessors, (5045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5045 transitions. [2022-03-01 17:09:12,634 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5045 transitions. Word has length 25 [2022-03-01 17:09:12,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:12,635 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5045 transitions. [2022-03-01 17:09:12,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5045 transitions. [2022-03-01 17:09:12,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:12,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:12,637 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] [2022-03-01 17:09:12,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-03-01 17:09:12,637 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:12,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash -894268527, now seen corresponding path program 492 times [2022-03-01 17:09:12,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:12,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562080964] [2022-03-01 17:09:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:12,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:12,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:12,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562080964] [2022-03-01 17:09:12,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562080964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:12,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:12,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:12,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466274220] [2022-03-01 17:09:12,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:12,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:12,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:12,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:12,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:12,754 INFO L87 Difference]: Start difference. First operand 1298 states and 5045 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:12,839 INFO L93 Difference]: Finished difference Result 2599 states and 9440 transitions. [2022-03-01 17:09:12,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:12,844 INFO L225 Difference]: With dead ends: 2599 [2022-03-01 17:09:12,845 INFO L226 Difference]: Without dead ends: 2380 [2022-03-01 17:09:12,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:12,845 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:12,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 167 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2022-03-01 17:09:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 1262. [2022-03-01 17:09:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.9119746233148294) internal successors, (4933), 1261 states have internal predecessors, (4933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4933 transitions. [2022-03-01 17:09:12,868 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4933 transitions. Word has length 25 [2022-03-01 17:09:12,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:12,868 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4933 transitions. [2022-03-01 17:09:12,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4933 transitions. [2022-03-01 17:09:12,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:12,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:12,870 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] [2022-03-01 17:09:12,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-03-01 17:09:12,870 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:12,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:12,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1156965299, now seen corresponding path program 493 times [2022-03-01 17:09:12,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:12,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308415130] [2022-03-01 17:09:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:12,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:12,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:12,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308415130] [2022-03-01 17:09:12,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308415130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:12,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:12,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:12,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288949137] [2022-03-01 17:09:12,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:12,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:12,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:12,948 INFO L87 Difference]: Start difference. First operand 1262 states and 4933 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,017 INFO L93 Difference]: Finished difference Result 2535 states and 9234 transitions. [2022-03-01 17:09:13,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:13,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:13,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,023 INFO L225 Difference]: With dead ends: 2535 [2022-03-01 17:09:13,023 INFO L226 Difference]: Without dead ends: 2376 [2022-03-01 17:09:13,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:13,023 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 159 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-03-01 17:09:13,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1286. [2022-03-01 17:09:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.9042801556420232) internal successors, (5017), 1285 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5017 transitions. [2022-03-01 17:09:13,047 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5017 transitions. Word has length 25 [2022-03-01 17:09:13,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:13,047 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5017 transitions. [2022-03-01 17:09:13,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5017 transitions. [2022-03-01 17:09:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:13,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:13,049 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] [2022-03-01 17:09:13,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-03-01 17:09:13,049 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:13,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2129704013, now seen corresponding path program 494 times [2022-03-01 17:09:13,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:13,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146588706] [2022-03-01 17:09:13,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:13,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:13,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:13,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146588706] [2022-03-01 17:09:13,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146588706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:13,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:13,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:13,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923387763] [2022-03-01 17:09:13,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:13,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:13,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:13,136 INFO L87 Difference]: Start difference. First operand 1286 states and 5017 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,214 INFO L93 Difference]: Finished difference Result 2563 states and 9322 transitions. [2022-03-01 17:09:13,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:13,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:13,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,220 INFO L225 Difference]: With dead ends: 2563 [2022-03-01 17:09:13,220 INFO L226 Difference]: Without dead ends: 2360 [2022-03-01 17:09:13,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:13,220 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 97 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 168 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:13,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-03-01 17:09:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1270. [2022-03-01 17:09:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.909377462568952) internal successors, (4961), 1269 states have internal predecessors, (4961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4961 transitions. [2022-03-01 17:09:13,245 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4961 transitions. Word has length 25 [2022-03-01 17:09:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:13,245 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4961 transitions. [2022-03-01 17:09:13,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4961 transitions. [2022-03-01 17:09:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:13,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:13,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:13,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-03-01 17:09:13,247 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:13,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:13,248 INFO L85 PathProgramCache]: Analyzing trace with hash 310168337, now seen corresponding path program 495 times [2022-03-01 17:09:13,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:13,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200788372] [2022-03-01 17:09:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:13,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:13,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:13,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200788372] [2022-03-01 17:09:13,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200788372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:13,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:13,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:13,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757301627] [2022-03-01 17:09:13,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:13,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:13,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:13,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:13,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:13,322 INFO L87 Difference]: Start difference. First operand 1270 states and 4961 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,391 INFO L93 Difference]: Finished difference Result 2531 states and 9214 transitions. [2022-03-01 17:09:13,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:13,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:13,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,397 INFO L225 Difference]: With dead ends: 2531 [2022-03-01 17:09:13,397 INFO L226 Difference]: Without dead ends: 2372 [2022-03-01 17:09:13,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:13,397 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 160 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:13,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2022-03-01 17:09:13,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 1286. [2022-03-01 17:09:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.898054474708171) internal successors, (5009), 1285 states have internal predecessors, (5009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 5009 transitions. [2022-03-01 17:09:13,424 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 5009 transitions. Word has length 25 [2022-03-01 17:09:13,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:13,424 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 5009 transitions. [2022-03-01 17:09:13,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 5009 transitions. [2022-03-01 17:09:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:13,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:13,426 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] [2022-03-01 17:09:13,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-03-01 17:09:13,427 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:13,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:13,427 INFO L85 PathProgramCache]: Analyzing trace with hash 280308659, now seen corresponding path program 496 times [2022-03-01 17:09:13,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:13,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484781694] [2022-03-01 17:09:13,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:13,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:13,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:13,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484781694] [2022-03-01 17:09:13,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484781694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:13,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:13,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:13,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971001873] [2022-03-01 17:09:13,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:13,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:13,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:13,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:13,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:13,507 INFO L87 Difference]: Start difference. First operand 1286 states and 5009 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,599 INFO L93 Difference]: Finished difference Result 2555 states and 9290 transitions. [2022-03-01 17:09:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:13,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:13,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,605 INFO L225 Difference]: With dead ends: 2555 [2022-03-01 17:09:13,605 INFO L226 Difference]: Without dead ends: 2356 [2022-03-01 17:09:13,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:13,605 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 92 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 184 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-03-01 17:09:13,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1270. [2022-03-01 17:09:13,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 1269 states have (on average 3.9030732860520096) internal successors, (4953), 1269 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 4953 transitions. [2022-03-01 17:09:13,630 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 4953 transitions. Word has length 25 [2022-03-01 17:09:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:13,630 INFO L470 AbstractCegarLoop]: Abstraction has 1270 states and 4953 transitions. [2022-03-01 17:09:13,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 4953 transitions. [2022-03-01 17:09:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:13,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:13,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:13,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-03-01 17:09:13,632 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2080136269, now seen corresponding path program 497 times [2022-03-01 17:09:13,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:13,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713379066] [2022-03-01 17:09:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:13,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:13,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:13,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713379066] [2022-03-01 17:09:13,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713379066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:13,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:13,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:13,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838503651] [2022-03-01 17:09:13,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:13,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:13,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:13,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:13,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:13,714 INFO L87 Difference]: Start difference. First operand 1270 states and 4953 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,786 INFO L93 Difference]: Finished difference Result 2599 states and 9466 transitions. [2022-03-01 17:09:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:13,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,792 INFO L225 Difference]: With dead ends: 2599 [2022-03-01 17:09:13,793 INFO L226 Difference]: Without dead ends: 2412 [2022-03-01 17:09:13,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:13,793 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 108 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 144 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-03-01 17:09:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1298. [2022-03-01 17:09:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 3.8866615265998457) internal successors, (5041), 1297 states have internal predecessors, (5041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 5041 transitions. [2022-03-01 17:09:13,819 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 5041 transitions. Word has length 25 [2022-03-01 17:09:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:13,819 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 5041 transitions. [2022-03-01 17:09:13,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 5041 transitions. [2022-03-01 17:09:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:13,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:13,821 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] [2022-03-01 17:09:13,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-03-01 17:09:13,821 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:13,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:13,821 INFO L85 PathProgramCache]: Analyzing trace with hash 171494033, now seen corresponding path program 498 times [2022-03-01 17:09:13,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:13,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957878876] [2022-03-01 17:09:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:13,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:13,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:13,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957878876] [2022-03-01 17:09:13,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957878876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:13,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:13,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:13,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670610506] [2022-03-01 17:09:13,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:13,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:13,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:13,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:13,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:13,898 INFO L87 Difference]: Start difference. First operand 1298 states and 5041 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:13,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:13,973 INFO L93 Difference]: Finished difference Result 2595 states and 9426 transitions. [2022-03-01 17:09:13,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:13,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:13,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:13,979 INFO L225 Difference]: With dead ends: 2595 [2022-03-01 17:09:13,979 INFO L226 Difference]: Without dead ends: 2376 [2022-03-01 17:09:13,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:13,979 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 106 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:13,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:13,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-03-01 17:09:13,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1262. [2022-03-01 17:09:13,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.908802537668517) internal successors, (4929), 1261 states have internal predecessors, (4929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4929 transitions. [2022-03-01 17:09:14,002 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4929 transitions. Word has length 25 [2022-03-01 17:09:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:14,002 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4929 transitions. [2022-03-01 17:09:14,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4929 transitions. [2022-03-01 17:09:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:14,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:14,004 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] [2022-03-01 17:09:14,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-03-01 17:09:14,004 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1881069589, now seen corresponding path program 499 times [2022-03-01 17:09:14,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:14,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036511244] [2022-03-01 17:09:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:14,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:14,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:14,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036511244] [2022-03-01 17:09:14,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036511244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:14,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:14,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:14,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695190100] [2022-03-01 17:09:14,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:14,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:14,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:14,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:14,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:14,119 INFO L87 Difference]: Start difference. First operand 1262 states and 4929 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:14,202 INFO L93 Difference]: Finished difference Result 2671 states and 9756 transitions. [2022-03-01 17:09:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:14,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:14,208 INFO L225 Difference]: With dead ends: 2671 [2022-03-01 17:09:14,208 INFO L226 Difference]: Without dead ends: 2482 [2022-03-01 17:09:14,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:14,209 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:14,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 143 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2482 states. [2022-03-01 17:09:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2482 to 1306. [2022-03-01 17:09:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 1305 states have (on average 3.8980842911877396) internal successors, (5087), 1305 states have internal predecessors, (5087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 5087 transitions. [2022-03-01 17:09:14,234 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 5087 transitions. Word has length 25 [2022-03-01 17:09:14,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:14,235 INFO L470 AbstractCegarLoop]: Abstraction has 1306 states and 5087 transitions. [2022-03-01 17:09:14,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 5087 transitions. [2022-03-01 17:09:14,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:14,237 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:14,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:14,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-03-01 17:09:14,237 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:14,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:14,237 INFO L85 PathProgramCache]: Analyzing trace with hash -162267405, now seen corresponding path program 500 times [2022-03-01 17:09:14,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:14,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490722610] [2022-03-01 17:09:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:14,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:14,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:14,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490722610] [2022-03-01 17:09:14,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490722610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:14,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:14,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:14,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230413262] [2022-03-01 17:09:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:14,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:14,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:14,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:14,357 INFO L87 Difference]: Start difference. First operand 1306 states and 5087 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:14,443 INFO L93 Difference]: Finished difference Result 2669 states and 9721 transitions. [2022-03-01 17:09:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:14,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:14,450 INFO L225 Difference]: With dead ends: 2669 [2022-03-01 17:09:14,450 INFO L226 Difference]: Without dead ends: 2452 [2022-03-01 17:09:14,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:14,450 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:14,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 144 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2022-03-01 17:09:14,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 1276. [2022-03-01 17:09:14,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.9058823529411764) internal successors, (4980), 1275 states have internal predecessors, (4980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4980 transitions. [2022-03-01 17:09:14,478 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4980 transitions. Word has length 25 [2022-03-01 17:09:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:14,478 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4980 transitions. [2022-03-01 17:09:14,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4980 transitions. [2022-03-01 17:09:14,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:14,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:14,480 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] [2022-03-01 17:09:14,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-03-01 17:09:14,480 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:14,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1034272627, now seen corresponding path program 501 times [2022-03-01 17:09:14,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:14,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501007964] [2022-03-01 17:09:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:14,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:14,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:14,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501007964] [2022-03-01 17:09:14,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501007964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:14,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:14,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:14,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120069351] [2022-03-01 17:09:14,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:14,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:14,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:14,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:14,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:14,564 INFO L87 Difference]: Start difference. First operand 1276 states and 4980 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:14,642 INFO L93 Difference]: Finished difference Result 2665 states and 9723 transitions. [2022-03-01 17:09:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:14,642 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:14,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:14,648 INFO L225 Difference]: With dead ends: 2665 [2022-03-01 17:09:14,648 INFO L226 Difference]: Without dead ends: 2476 [2022-03-01 17:09:14,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:14,648 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 102 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:14,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 151 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:14,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-03-01 17:09:14,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 1304. [2022-03-01 17:09:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 3.889485801995395) internal successors, (5068), 1303 states have internal predecessors, (5068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5068 transitions. [2022-03-01 17:09:14,671 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5068 transitions. Word has length 25 [2022-03-01 17:09:14,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:14,671 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5068 transitions. [2022-03-01 17:09:14,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5068 transitions. [2022-03-01 17:09:14,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:14,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:14,687 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] [2022-03-01 17:09:14,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-03-01 17:09:14,687 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:14,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:14,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2068228237, now seen corresponding path program 502 times [2022-03-01 17:09:14,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:14,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947811284] [2022-03-01 17:09:14,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:14,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:14,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:14,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947811284] [2022-03-01 17:09:14,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947811284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:14,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:14,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:14,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309388325] [2022-03-01 17:09:14,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:14,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:14,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:14,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:14,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:14,821 INFO L87 Difference]: Start difference. First operand 1304 states and 5068 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:14,948 INFO L93 Difference]: Finished difference Result 2659 states and 9678 transitions. [2022-03-01 17:09:14,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:14,955 INFO L225 Difference]: With dead ends: 2659 [2022-03-01 17:09:14,955 INFO L226 Difference]: Without dead ends: 2448 [2022-03-01 17:09:14,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:14,955 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 118 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:14,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 142 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2022-03-01 17:09:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1276. [2022-03-01 17:09:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 3.894901960784314) internal successors, (4966), 1275 states have internal predecessors, (4966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 4966 transitions. [2022-03-01 17:09:14,986 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 4966 transitions. Word has length 25 [2022-03-01 17:09:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:14,986 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 4966 transitions. [2022-03-01 17:09:14,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 4966 transitions. [2022-03-01 17:09:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:14,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:14,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:14,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-03-01 17:09:14,989 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash 2016620241, now seen corresponding path program 503 times [2022-03-01 17:09:14,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:14,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692273250] [2022-03-01 17:09:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:14,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:15,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:15,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692273250] [2022-03-01 17:09:15,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692273250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:15,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:15,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:15,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668423009] [2022-03-01 17:09:15,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:15,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:15,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:15,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:15,082 INFO L87 Difference]: Start difference. First operand 1276 states and 4966 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:15,155 INFO L93 Difference]: Finished difference Result 2661 states and 9699 transitions. [2022-03-01 17:09:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:15,156 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:15,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:15,161 INFO L225 Difference]: With dead ends: 2661 [2022-03-01 17:09:15,161 INFO L226 Difference]: Without dead ends: 2474 [2022-03-01 17:09:15,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:15,161 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 108 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:15,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 145 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-03-01 17:09:15,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1304. [2022-03-01 17:09:15,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1303 states have (on average 3.878741366078281) internal successors, (5054), 1303 states have internal predecessors, (5054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 5054 transitions. [2022-03-01 17:09:15,183 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 5054 transitions. Word has length 25 [2022-03-01 17:09:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:15,183 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 5054 transitions. [2022-03-01 17:09:15,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 5054 transitions. [2022-03-01 17:09:15,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:15,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:15,185 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] [2022-03-01 17:09:15,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-03-01 17:09:15,185 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:15,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:15,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1197284429, now seen corresponding path program 504 times [2022-03-01 17:09:15,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:15,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435889908] [2022-03-01 17:09:15,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:15,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:15,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:15,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:15,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435889908] [2022-03-01 17:09:15,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435889908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:15,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:15,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:15,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636677565] [2022-03-01 17:09:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:15,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:15,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:15,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:15,265 INFO L87 Difference]: Start difference. First operand 1304 states and 5054 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:15,338 INFO L93 Difference]: Finished difference Result 2657 states and 9659 transitions. [2022-03-01 17:09:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:15,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:15,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:15,344 INFO L225 Difference]: With dead ends: 2657 [2022-03-01 17:09:15,344 INFO L226 Difference]: Without dead ends: 2428 [2022-03-01 17:09:15,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:15,344 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 115 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:15,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 135 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-03-01 17:09:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 1258. [2022-03-01 17:09:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.913285600636436) internal successors, (4919), 1257 states have internal predecessors, (4919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4919 transitions. [2022-03-01 17:09:15,369 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4919 transitions. Word has length 25 [2022-03-01 17:09:15,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:15,369 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4919 transitions. [2022-03-01 17:09:15,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4919 transitions. [2022-03-01 17:09:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:15,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:15,371 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] [2022-03-01 17:09:15,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-03-01 17:09:15,372 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:15,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1335503151, now seen corresponding path program 505 times [2022-03-01 17:09:15,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:15,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563977748] [2022-03-01 17:09:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:15,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:15,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563977748] [2022-03-01 17:09:15,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563977748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:15,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:15,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:15,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294827090] [2022-03-01 17:09:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:15,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:15,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:15,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:15,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:15,448 INFO L87 Difference]: Start difference. First operand 1258 states and 4919 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:15,518 INFO L93 Difference]: Finished difference Result 2515 states and 9144 transitions. [2022-03-01 17:09:15,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:15,519 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:15,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:15,524 INFO L225 Difference]: With dead ends: 2515 [2022-03-01 17:09:15,524 INFO L226 Difference]: Without dead ends: 2356 [2022-03-01 17:09:15,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:15,525 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 103 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:15,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 165 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2022-03-01 17:09:15,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 1274. [2022-03-01 17:09:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.9018067556952083) internal successors, (4967), 1273 states have internal predecessors, (4967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4967 transitions. [2022-03-01 17:09:15,552 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4967 transitions. Word has length 25 [2022-03-01 17:09:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:15,552 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4967 transitions. [2022-03-01 17:09:15,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4967 transitions. [2022-03-01 17:09:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:15,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:15,554 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] [2022-03-01 17:09:15,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-03-01 17:09:15,554 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:15,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1369529395, now seen corresponding path program 506 times [2022-03-01 17:09:15,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:15,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820269142] [2022-03-01 17:09:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:15,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:15,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:15,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820269142] [2022-03-01 17:09:15,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820269142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:15,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:15,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:15,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628364062] [2022-03-01 17:09:15,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:15,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:15,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:15,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:15,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:15,635 INFO L87 Difference]: Start difference. First operand 1274 states and 4967 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:15,746 INFO L93 Difference]: Finished difference Result 2545 states and 9237 transitions. [2022-03-01 17:09:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:15,751 INFO L225 Difference]: With dead ends: 2545 [2022-03-01 17:09:15,751 INFO L226 Difference]: Without dead ends: 2340 [2022-03-01 17:09:15,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:15,751 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:15,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 153 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-03-01 17:09:15,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 1258. [2022-03-01 17:09:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.9069212410501195) internal successors, (4911), 1257 states have internal predecessors, (4911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4911 transitions. [2022-03-01 17:09:15,773 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4911 transitions. Word has length 25 [2022-03-01 17:09:15,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:15,773 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4911 transitions. [2022-03-01 17:09:15,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:15,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4911 transitions. [2022-03-01 17:09:15,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:15,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:15,775 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] [2022-03-01 17:09:15,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-03-01 17:09:15,775 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:15,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash -254440525, now seen corresponding path program 507 times [2022-03-01 17:09:15,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:15,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278217514] [2022-03-01 17:09:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:15,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:15,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278217514] [2022-03-01 17:09:15,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278217514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:15,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:15,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:15,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302124456] [2022-03-01 17:09:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:15,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:15,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:15,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:15,908 INFO L87 Difference]: Start difference. First operand 1258 states and 4911 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:16,021 INFO L93 Difference]: Finished difference Result 2513 states and 9131 transitions. [2022-03-01 17:09:16,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:16,021 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:16,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:16,026 INFO L225 Difference]: With dead ends: 2513 [2022-03-01 17:09:16,026 INFO L226 Difference]: Without dead ends: 2354 [2022-03-01 17:09:16,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:16,026 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 114 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:16,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 158 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2022-03-01 17:09:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1274. [2022-03-01 17:09:16,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.8955223880597014) internal successors, (4959), 1273 states have internal predecessors, (4959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4959 transitions. [2022-03-01 17:09:16,049 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4959 transitions. Word has length 25 [2022-03-01 17:09:16,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:16,049 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4959 transitions. [2022-03-01 17:09:16,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4959 transitions. [2022-03-01 17:09:16,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:16,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:16,051 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] [2022-03-01 17:09:16,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-03-01 17:09:16,051 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:16,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 753857459, now seen corresponding path program 508 times [2022-03-01 17:09:16,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:16,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403871723] [2022-03-01 17:09:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:16,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:16,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:16,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403871723] [2022-03-01 17:09:16,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403871723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:16,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:16,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:16,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407942840] [2022-03-01 17:09:16,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:16,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:16,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:16,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:16,167 INFO L87 Difference]: Start difference. First operand 1274 states and 4959 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:16,267 INFO L93 Difference]: Finished difference Result 2541 states and 9219 transitions. [2022-03-01 17:09:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:16,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:16,272 INFO L225 Difference]: With dead ends: 2541 [2022-03-01 17:09:16,272 INFO L226 Difference]: Without dead ends: 2338 [2022-03-01 17:09:16,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:16,273 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 120 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:16,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 134 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2022-03-01 17:09:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 1258. [2022-03-01 17:09:16,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.9005568814638027) internal successors, (4903), 1257 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4903 transitions. [2022-03-01 17:09:16,294 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4903 transitions. Word has length 25 [2022-03-01 17:09:16,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:16,294 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4903 transitions. [2022-03-01 17:09:16,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4903 transitions. [2022-03-01 17:09:16,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:16,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:16,296 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] [2022-03-01 17:09:16,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-03-01 17:09:16,296 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1162721429, now seen corresponding path program 509 times [2022-03-01 17:09:16,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:16,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138069052] [2022-03-01 17:09:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:16,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:16,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:16,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138069052] [2022-03-01 17:09:16,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138069052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:16,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:16,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:16,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220798695] [2022-03-01 17:09:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:16,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:16,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:16,385 INFO L87 Difference]: Start difference. First operand 1258 states and 4903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:16,470 INFO L93 Difference]: Finished difference Result 2587 states and 9400 transitions. [2022-03-01 17:09:16,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:16,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:16,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:16,475 INFO L225 Difference]: With dead ends: 2587 [2022-03-01 17:09:16,475 INFO L226 Difference]: Without dead ends: 2398 [2022-03-01 17:09:16,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:16,475 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:16,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 147 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:16,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-03-01 17:09:16,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 1288. [2022-03-01 17:09:16,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.8818958818958818) internal successors, (4996), 1287 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 4996 transitions. [2022-03-01 17:09:16,508 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 4996 transitions. Word has length 25 [2022-03-01 17:09:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:16,508 INFO L470 AbstractCegarLoop]: Abstraction has 1288 states and 4996 transitions. [2022-03-01 17:09:16,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 4996 transitions. [2022-03-01 17:09:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:16,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:16,510 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] [2022-03-01 17:09:16,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-03-01 17:09:16,510 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:16,511 INFO L85 PathProgramCache]: Analyzing trace with hash -880615565, now seen corresponding path program 510 times [2022-03-01 17:09:16,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:16,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753179341] [2022-03-01 17:09:16,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:16,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:16,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:16,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753179341] [2022-03-01 17:09:16,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753179341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:16,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:16,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:16,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342333961] [2022-03-01 17:09:16,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:16,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:16,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:16,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:16,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:16,612 INFO L87 Difference]: Start difference. First operand 1288 states and 4996 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:16,699 INFO L93 Difference]: Finished difference Result 2585 states and 9365 transitions. [2022-03-01 17:09:16,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:16,699 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:16,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:16,704 INFO L225 Difference]: With dead ends: 2585 [2022-03-01 17:09:16,704 INFO L226 Difference]: Without dead ends: 2360 [2022-03-01 17:09:16,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:16,704 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 120 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:16,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 135 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:16,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-03-01 17:09:16,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1250. [2022-03-01 17:09:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.9063250600480384) internal successors, (4879), 1249 states have internal predecessors, (4879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4879 transitions. [2022-03-01 17:09:16,726 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4879 transitions. Word has length 25 [2022-03-01 17:09:16,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:16,726 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4879 transitions. [2022-03-01 17:09:16,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4879 transitions. [2022-03-01 17:09:16,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:16,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:16,728 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] [2022-03-01 17:09:16,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-03-01 17:09:16,728 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -242532655, now seen corresponding path program 511 times [2022-03-01 17:09:16,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:16,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849424002] [2022-03-01 17:09:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:16,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:16,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:16,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849424002] [2022-03-01 17:09:16,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849424002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:16,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:16,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:16,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013454735] [2022-03-01 17:09:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:16,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:16,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:16,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:16,870 INFO L87 Difference]: Start difference. First operand 1250 states and 4879 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:16,973 INFO L93 Difference]: Finished difference Result 2481 states and 9013 transitions. [2022-03-01 17:09:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:16,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:16,979 INFO L225 Difference]: With dead ends: 2481 [2022-03-01 17:09:16,979 INFO L226 Difference]: Without dead ends: 2322 [2022-03-01 17:09:16,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:16,979 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 95 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:16,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 175 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2322 states. [2022-03-01 17:09:16,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2322 to 1274. [2022-03-01 17:09:17,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.898664571877455) internal successors, (4963), 1273 states have internal predecessors, (4963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4963 transitions. [2022-03-01 17:09:17,003 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4963 transitions. Word has length 25 [2022-03-01 17:09:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:17,004 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4963 transitions. [2022-03-01 17:09:17,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4963 transitions. [2022-03-01 17:09:17,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:17,005 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:17,006 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] [2022-03-01 17:09:17,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-03-01 17:09:17,006 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:17,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:17,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1832467405, now seen corresponding path program 512 times [2022-03-01 17:09:17,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:17,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427610581] [2022-03-01 17:09:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:17,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:17,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:17,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427610581] [2022-03-01 17:09:17,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427610581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:17,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:17,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:17,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350643215] [2022-03-01 17:09:17,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:17,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:17,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:17,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:17,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:17,124 INFO L87 Difference]: Start difference. First operand 1274 states and 4963 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:17,241 INFO L93 Difference]: Finished difference Result 2511 states and 9106 transitions. [2022-03-01 17:09:17,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:17,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:17,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:17,247 INFO L225 Difference]: With dead ends: 2511 [2022-03-01 17:09:17,247 INFO L226 Difference]: Without dead ends: 2306 [2022-03-01 17:09:17,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:17,247 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 96 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:17,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 174 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2022-03-01 17:09:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 1258. [2022-03-01 17:09:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.903739061256961) internal successors, (4907), 1257 states have internal predecessors, (4907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4907 transitions. [2022-03-01 17:09:17,269 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4907 transitions. Word has length 25 [2022-03-01 17:09:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:17,270 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4907 transitions. [2022-03-01 17:09:17,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4907 transitions. [2022-03-01 17:09:17,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:17,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:17,272 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:17,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-03-01 17:09:17,272 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:17,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash -192964911, now seen corresponding path program 513 times [2022-03-01 17:09:17,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:17,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425753772] [2022-03-01 17:09:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:17,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:17,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425753772] [2022-03-01 17:09:17,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425753772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:17,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:17,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:17,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24626835] [2022-03-01 17:09:17,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:17,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:17,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:17,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:17,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:17,353 INFO L87 Difference]: Start difference. First operand 1258 states and 4907 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:17,423 INFO L93 Difference]: Finished difference Result 2435 states and 8848 transitions. [2022-03-01 17:09:17,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:17,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:17,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:17,428 INFO L225 Difference]: With dead ends: 2435 [2022-03-01 17:09:17,428 INFO L226 Difference]: Without dead ends: 2276 [2022-03-01 17:09:17,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:17,428 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 112 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:17,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 154 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2022-03-01 17:09:17,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1274. [2022-03-01 17:09:17,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.892380204241948) internal successors, (4955), 1273 states have internal predecessors, (4955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4955 transitions. [2022-03-01 17:09:17,450 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4955 transitions. Word has length 25 [2022-03-01 17:09:17,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:17,450 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4955 transitions. [2022-03-01 17:09:17,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4955 transitions. [2022-03-01 17:09:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:17,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:17,452 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] [2022-03-01 17:09:17,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-03-01 17:09:17,453 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:17,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:17,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2135236911, now seen corresponding path program 514 times [2022-03-01 17:09:17,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:17,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910420486] [2022-03-01 17:09:17,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:17,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:17,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:17,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910420486] [2022-03-01 17:09:17,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910420486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:17,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:17,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:17,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68628861] [2022-03-01 17:09:17,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:17,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:17,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:17,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:17,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:17,575 INFO L87 Difference]: Start difference. First operand 1274 states and 4955 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:17,678 INFO L93 Difference]: Finished difference Result 2323 states and 8511 transitions. [2022-03-01 17:09:17,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:17,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:17,683 INFO L225 Difference]: With dead ends: 2323 [2022-03-01 17:09:17,683 INFO L226 Difference]: Without dead ends: 2132 [2022-03-01 17:09:17,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:17,683 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:17,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 150 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2022-03-01 17:09:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 1258. [2022-03-01 17:09:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.8973747016706444) internal successors, (4899), 1257 states have internal predecessors, (4899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4899 transitions. [2022-03-01 17:09:17,704 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4899 transitions. Word has length 25 [2022-03-01 17:09:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:17,705 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4899 transitions. [2022-03-01 17:09:17,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4899 transitions. [2022-03-01 17:09:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:17,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:17,706 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] [2022-03-01 17:09:17,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-03-01 17:09:17,706 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1224197043, now seen corresponding path program 515 times [2022-03-01 17:09:17,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:17,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799279384] [2022-03-01 17:09:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:17,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:17,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799279384] [2022-03-01 17:09:17,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799279384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:17,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:17,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:17,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333043449] [2022-03-01 17:09:17,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:17,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:17,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:17,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:17,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:17,827 INFO L87 Difference]: Start difference. First operand 1258 states and 4899 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:17,937 INFO L93 Difference]: Finished difference Result 2473 states and 8985 transitions. [2022-03-01 17:09:17,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:17,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:17,942 INFO L225 Difference]: With dead ends: 2473 [2022-03-01 17:09:17,942 INFO L226 Difference]: Without dead ends: 2284 [2022-03-01 17:09:17,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:17,942 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:17,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 165 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2022-03-01 17:09:17,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 1282. [2022-03-01 17:09:17,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.8836846213895395) internal successors, (4975), 1281 states have internal predecessors, (4975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4975 transitions. [2022-03-01 17:09:17,963 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4975 transitions. Word has length 25 [2022-03-01 17:09:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:17,963 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4975 transitions. [2022-03-01 17:09:17,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4975 transitions. [2022-03-01 17:09:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:17,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:17,965 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] [2022-03-01 17:09:17,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-03-01 17:09:17,965 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:17,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 483244945, now seen corresponding path program 516 times [2022-03-01 17:09:17,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:17,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055962045] [2022-03-01 17:09:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:17,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:18,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:18,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055962045] [2022-03-01 17:09:18,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055962045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:18,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:18,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:18,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062595342] [2022-03-01 17:09:18,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:18,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:18,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:18,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:18,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:18,050 INFO L87 Difference]: Start difference. First operand 1282 states and 4975 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:18,121 INFO L93 Difference]: Finished difference Result 2331 states and 8531 transitions. [2022-03-01 17:09:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:18,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:18,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:18,126 INFO L225 Difference]: With dead ends: 2331 [2022-03-01 17:09:18,126 INFO L226 Difference]: Without dead ends: 2124 [2022-03-01 17:09:18,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:18,126 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 110 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:18,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 140 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2022-03-01 17:09:18,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1250. [2022-03-01 17:09:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.9031224979983987) internal successors, (4875), 1249 states have internal predecessors, (4875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4875 transitions. [2022-03-01 17:09:18,147 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4875 transitions. Word has length 25 [2022-03-01 17:09:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:18,147 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4875 transitions. [2022-03-01 17:09:18,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4875 transitions. [2022-03-01 17:09:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:18,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:18,149 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] [2022-03-01 17:09:18,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-03-01 17:09:18,149 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:18,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:18,149 INFO L85 PathProgramCache]: Analyzing trace with hash 145472307, now seen corresponding path program 517 times [2022-03-01 17:09:18,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:18,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846799679] [2022-03-01 17:09:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:18,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:18,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:18,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846799679] [2022-03-01 17:09:18,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846799679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:18,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:18,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:18,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594062131] [2022-03-01 17:09:18,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:18,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:18,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:18,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:18,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:18,246 INFO L87 Difference]: Start difference. First operand 1250 states and 4875 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:18,317 INFO L93 Difference]: Finished difference Result 2477 states and 8999 transitions. [2022-03-01 17:09:18,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:18,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:18,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:18,340 INFO L225 Difference]: With dead ends: 2477 [2022-03-01 17:09:18,340 INFO L226 Difference]: Without dead ends: 2318 [2022-03-01 17:09:18,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:18,340 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 112 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:18,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 153 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:18,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-03-01 17:09:18,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1274. [2022-03-01 17:09:18,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.8955223880597014) internal successors, (4959), 1273 states have internal predecessors, (4959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4959 transitions. [2022-03-01 17:09:18,362 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4959 transitions. Word has length 25 [2022-03-01 17:09:18,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:18,362 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4959 transitions. [2022-03-01 17:09:18,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4959 transitions. [2022-03-01 17:09:18,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:18,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:18,364 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] [2022-03-01 17:09:18,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-03-01 17:09:18,364 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:18,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:18,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1153770291, now seen corresponding path program 518 times [2022-03-01 17:09:18,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:18,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243911441] [2022-03-01 17:09:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:18,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:18,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:18,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243911441] [2022-03-01 17:09:18,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243911441] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:18,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:18,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:18,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944112034] [2022-03-01 17:09:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:18,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:18,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:18,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:18,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:18,497 INFO L87 Difference]: Start difference. First operand 1274 states and 4959 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:18,571 INFO L93 Difference]: Finished difference Result 2505 states and 9087 transitions. [2022-03-01 17:09:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:18,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:18,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:18,576 INFO L225 Difference]: With dead ends: 2505 [2022-03-01 17:09:18,576 INFO L226 Difference]: Without dead ends: 2302 [2022-03-01 17:09:18,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:18,576 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 121 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:18,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 140 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-01 17:09:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1258. [2022-03-01 17:09:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.9005568814638027) internal successors, (4903), 1257 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4903 transitions. [2022-03-01 17:09:18,599 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4903 transitions. Word has length 25 [2022-03-01 17:09:18,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:18,599 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4903 transitions. [2022-03-01 17:09:18,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4903 transitions. [2022-03-01 17:09:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:18,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:18,601 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] [2022-03-01 17:09:18,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-03-01 17:09:18,601 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1970607343, now seen corresponding path program 519 times [2022-03-01 17:09:18,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:18,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926077540] [2022-03-01 17:09:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:18,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:18,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:18,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926077540] [2022-03-01 17:09:18,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926077540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:18,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:18,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:18,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391407002] [2022-03-01 17:09:18,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:18,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:18,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:18,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:18,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:18,680 INFO L87 Difference]: Start difference. First operand 1258 states and 4903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:18,752 INFO L93 Difference]: Finished difference Result 2433 states and 8839 transitions. [2022-03-01 17:09:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:18,753 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:18,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:18,758 INFO L225 Difference]: With dead ends: 2433 [2022-03-01 17:09:18,758 INFO L226 Difference]: Without dead ends: 2274 [2022-03-01 17:09:18,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:18,758 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 105 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:18,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 158 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-03-01 17:09:18,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1274. [2022-03-01 17:09:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.889238020424195) internal successors, (4951), 1273 states have internal predecessors, (4951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4951 transitions. [2022-03-01 17:09:18,780 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4951 transitions. Word has length 25 [2022-03-01 17:09:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:18,780 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4951 transitions. [2022-03-01 17:09:18,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4951 transitions. [2022-03-01 17:09:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:18,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:18,782 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] [2022-03-01 17:09:18,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-03-01 17:09:18,782 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:18,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:18,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1678828339, now seen corresponding path program 520 times [2022-03-01 17:09:18,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:18,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808728701] [2022-03-01 17:09:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:18,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:18,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:18,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808728701] [2022-03-01 17:09:18,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808728701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:18,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:18,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:18,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068379766] [2022-03-01 17:09:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:18,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:18,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:18,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:18,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:18,859 INFO L87 Difference]: Start difference. First operand 1274 states and 4951 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:18,934 INFO L93 Difference]: Finished difference Result 2321 states and 8502 transitions. [2022-03-01 17:09:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:18,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:18,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:18,939 INFO L225 Difference]: With dead ends: 2321 [2022-03-01 17:09:18,939 INFO L226 Difference]: Without dead ends: 2130 [2022-03-01 17:09:18,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:18,939 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 93 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:18,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 150 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-03-01 17:09:18,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1258. [2022-03-01 17:09:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 3.894192521877486) internal successors, (4895), 1257 states have internal predecessors, (4895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 4895 transitions. [2022-03-01 17:09:18,961 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 4895 transitions. Word has length 25 [2022-03-01 17:09:18,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:18,961 INFO L470 AbstractCegarLoop]: Abstraction has 1258 states and 4895 transitions. [2022-03-01 17:09:18,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:18,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 4895 transitions. [2022-03-01 17:09:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:18,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:18,963 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] [2022-03-01 17:09:18,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-03-01 17:09:18,963 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:18,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:18,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1353815245, now seen corresponding path program 521 times [2022-03-01 17:09:18,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:18,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438280905] [2022-03-01 17:09:18,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:18,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:19,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:19,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438280905] [2022-03-01 17:09:19,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438280905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:19,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:19,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:19,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43147931] [2022-03-01 17:09:19,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:19,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:19,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:19,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:19,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:19,040 INFO L87 Difference]: Start difference. First operand 1258 states and 4895 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:19,117 INFO L93 Difference]: Finished difference Result 2469 states and 8971 transitions. [2022-03-01 17:09:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:19,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:19,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:19,123 INFO L225 Difference]: With dead ends: 2469 [2022-03-01 17:09:19,124 INFO L226 Difference]: Without dead ends: 2282 [2022-03-01 17:09:19,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:19,124 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 99 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:19,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:19,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-03-01 17:09:19,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 1282. [2022-03-01 17:09:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1281 states have (on average 3.88056206088993) internal successors, (4971), 1281 states have internal predecessors, (4971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 4971 transitions. [2022-03-01 17:09:19,148 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 4971 transitions. Word has length 25 [2022-03-01 17:09:19,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:19,148 INFO L470 AbstractCegarLoop]: Abstraction has 1282 states and 4971 transitions. [2022-03-01 17:09:19,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 4971 transitions. [2022-03-01 17:09:19,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:19,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:19,150 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] [2022-03-01 17:09:19,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-03-01 17:09:19,150 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:19,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:19,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1549007505, now seen corresponding path program 522 times [2022-03-01 17:09:19,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:19,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507720686] [2022-03-01 17:09:19,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:19,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:19,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:19,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:19,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507720686] [2022-03-01 17:09:19,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507720686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:19,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:19,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:19,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224474223] [2022-03-01 17:09:19,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:19,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:19,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:19,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:19,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:19,227 INFO L87 Difference]: Start difference. First operand 1282 states and 4971 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:19,305 INFO L93 Difference]: Finished difference Result 2329 states and 8522 transitions. [2022-03-01 17:09:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:19,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:19,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:19,309 INFO L225 Difference]: With dead ends: 2329 [2022-03-01 17:09:19,310 INFO L226 Difference]: Without dead ends: 2122 [2022-03-01 17:09:19,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:19,310 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 94 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:19,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 165 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2022-03-01 17:09:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 1250. [2022-03-01 17:09:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.899919935948759) internal successors, (4871), 1249 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4871 transitions. [2022-03-01 17:09:19,330 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4871 transitions. Word has length 25 [2022-03-01 17:09:19,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:19,330 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4871 transitions. [2022-03-01 17:09:19,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4871 transitions. [2022-03-01 17:09:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:19,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:19,332 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] [2022-03-01 17:09:19,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-03-01 17:09:19,332 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:19,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:19,332 INFO L85 PathProgramCache]: Analyzing trace with hash 869576597, now seen corresponding path program 523 times [2022-03-01 17:09:19,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:19,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192618149] [2022-03-01 17:09:19,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:19,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:19,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:19,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192618149] [2022-03-01 17:09:19,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192618149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:19,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:19,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:19,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080548778] [2022-03-01 17:09:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:19,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:19,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:19,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:19,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:19,409 INFO L87 Difference]: Start difference. First operand 1250 states and 4871 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:19,499 INFO L93 Difference]: Finished difference Result 2593 states and 9437 transitions. [2022-03-01 17:09:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:19,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:19,504 INFO L225 Difference]: With dead ends: 2593 [2022-03-01 17:09:19,504 INFO L226 Difference]: Without dead ends: 2404 [2022-03-01 17:09:19,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:19,505 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 114 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:19,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 141 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:19,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2022-03-01 17:09:19,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1292. [2022-03-01 17:09:19,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 3.8884585592563905) internal successors, (5020), 1291 states have internal predecessors, (5020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 5020 transitions. [2022-03-01 17:09:19,527 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 5020 transitions. Word has length 25 [2022-03-01 17:09:19,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:19,527 INFO L470 AbstractCegarLoop]: Abstraction has 1292 states and 5020 transitions. [2022-03-01 17:09:19,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 5020 transitions. [2022-03-01 17:09:19,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:19,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:19,529 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] [2022-03-01 17:09:19,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-03-01 17:09:19,529 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:19,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:19,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1173760397, now seen corresponding path program 524 times [2022-03-01 17:09:19,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:19,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109293815] [2022-03-01 17:09:19,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:19,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:19,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:19,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:19,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109293815] [2022-03-01 17:09:19,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109293815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:19,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:19,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:19,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268400858] [2022-03-01 17:09:19,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:19,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:19,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:19,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:19,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:19,629 INFO L87 Difference]: Start difference. First operand 1292 states and 5020 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:19,721 INFO L93 Difference]: Finished difference Result 2591 states and 9402 transitions. [2022-03-01 17:09:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:19,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:19,726 INFO L225 Difference]: With dead ends: 2591 [2022-03-01 17:09:19,726 INFO L226 Difference]: Without dead ends: 2374 [2022-03-01 17:09:19,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:19,727 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:19,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 151 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:19,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2374 states. [2022-03-01 17:09:19,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2374 to 1262. [2022-03-01 17:09:19,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.8977002379064234) internal successors, (4915), 1261 states have internal predecessors, (4915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4915 transitions. [2022-03-01 17:09:19,749 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4915 transitions. Word has length 25 [2022-03-01 17:09:19,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:19,749 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4915 transitions. [2022-03-01 17:09:19,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4915 transitions. [2022-03-01 17:09:19,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:19,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:19,751 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] [2022-03-01 17:09:19,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-03-01 17:09:19,751 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:19,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1246503053, now seen corresponding path program 525 times [2022-03-01 17:09:19,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:19,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901304535] [2022-03-01 17:09:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:19,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:19,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901304535] [2022-03-01 17:09:19,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901304535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:19,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:19,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:19,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557301715] [2022-03-01 17:09:19,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:19,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:19,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:19,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:19,850 INFO L87 Difference]: Start difference. First operand 1262 states and 4915 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:19,954 INFO L93 Difference]: Finished difference Result 2513 states and 9141 transitions. [2022-03-01 17:09:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:19,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:19,959 INFO L225 Difference]: With dead ends: 2513 [2022-03-01 17:09:19,959 INFO L226 Difference]: Without dead ends: 2324 [2022-03-01 17:09:19,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:19,960 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:19,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 148 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2022-03-01 17:09:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1286. [2022-03-01 17:09:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.884046692607004) internal successors, (4991), 1285 states have internal predecessors, (4991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 4991 transitions. [2022-03-01 17:09:19,982 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 4991 transitions. Word has length 25 [2022-03-01 17:09:19,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:19,983 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 4991 transitions. [2022-03-01 17:09:19,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:19,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 4991 transitions. [2022-03-01 17:09:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:19,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:19,985 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] [2022-03-01 17:09:19,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-03-01 17:09:19,985 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -690714765, now seen corresponding path program 526 times [2022-03-01 17:09:19,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:19,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927142048] [2022-03-01 17:09:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:19,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:20,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:20,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927142048] [2022-03-01 17:09:20,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927142048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:20,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:20,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:20,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341262988] [2022-03-01 17:09:20,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:20,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:20,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:20,095 INFO L87 Difference]: Start difference. First operand 1286 states and 4991 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:20,202 INFO L93 Difference]: Finished difference Result 2371 states and 8687 transitions. [2022-03-01 17:09:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:20,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:20,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:20,208 INFO L225 Difference]: With dead ends: 2371 [2022-03-01 17:09:20,208 INFO L226 Difference]: Without dead ends: 2172 [2022-03-01 17:09:20,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:20,208 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 107 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:20,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 136 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:20,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2022-03-01 17:09:20,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1262. [2022-03-01 17:09:20,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.888183980967486) internal successors, (4903), 1261 states have internal predecessors, (4903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4903 transitions. [2022-03-01 17:09:20,233 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4903 transitions. Word has length 25 [2022-03-01 17:09:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:20,233 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4903 transitions. [2022-03-01 17:09:20,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4903 transitions. [2022-03-01 17:09:20,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:20,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:20,235 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] [2022-03-01 17:09:20,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-03-01 17:09:20,235 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:20,236 INFO L85 PathProgramCache]: Analyzing trace with hash -264155439, now seen corresponding path program 527 times [2022-03-01 17:09:20,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:20,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222625323] [2022-03-01 17:09:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:20,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:20,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:20,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:20,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222625323] [2022-03-01 17:09:20,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222625323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:20,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:20,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:20,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69622978] [2022-03-01 17:09:20,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:20,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:20,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:20,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:20,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:20,339 INFO L87 Difference]: Start difference. First operand 1262 states and 4903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:20,437 INFO L93 Difference]: Finished difference Result 2511 states and 9124 transitions. [2022-03-01 17:09:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:20,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:20,442 INFO L225 Difference]: With dead ends: 2511 [2022-03-01 17:09:20,442 INFO L226 Difference]: Without dead ends: 2324 [2022-03-01 17:09:20,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:20,442 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 102 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:20,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 157 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:20,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2022-03-01 17:09:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1286. [2022-03-01 17:09:20,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1285 states have (on average 3.8747081712062257) internal successors, (4979), 1285 states have internal predecessors, (4979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 4979 transitions. [2022-03-01 17:09:20,465 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 4979 transitions. Word has length 25 [2022-03-01 17:09:20,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:20,465 INFO L470 AbstractCegarLoop]: Abstraction has 1286 states and 4979 transitions. [2022-03-01 17:09:20,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 4979 transitions. [2022-03-01 17:09:20,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:20,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:20,467 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] [2022-03-01 17:09:20,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-03-01 17:09:20,467 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:20,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:20,467 INFO L85 PathProgramCache]: Analyzing trace with hash -470963405, now seen corresponding path program 528 times [2022-03-01 17:09:20,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:20,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298127434] [2022-03-01 17:09:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:20,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:20,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:20,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298127434] [2022-03-01 17:09:20,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298127434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:20,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:20,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:20,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535228853] [2022-03-01 17:09:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:20,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:20,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:20,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:20,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:20,640 INFO L87 Difference]: Start difference. First operand 1286 states and 4979 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:20,778 INFO L93 Difference]: Finished difference Result 2371 states and 8675 transitions. [2022-03-01 17:09:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:20,783 INFO L225 Difference]: With dead ends: 2371 [2022-03-01 17:09:20,783 INFO L226 Difference]: Without dead ends: 2156 [2022-03-01 17:09:20,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:20,784 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 96 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:20,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 158 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:20,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2022-03-01 17:09:20,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 1246. [2022-03-01 17:09:20,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.9044176706827307) internal successors, (4861), 1245 states have internal predecessors, (4861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4861 transitions. [2022-03-01 17:09:20,805 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4861 transitions. Word has length 25 [2022-03-01 17:09:20,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:20,805 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4861 transitions. [2022-03-01 17:09:20,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4861 transitions. [2022-03-01 17:09:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:20,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:20,807 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] [2022-03-01 17:09:20,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-03-01 17:09:20,807 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:20,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:20,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2124889421, now seen corresponding path program 529 times [2022-03-01 17:09:20,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:20,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911987496] [2022-03-01 17:09:20,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:20,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:20,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:20,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911987496] [2022-03-01 17:09:20,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911987496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:20,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:20,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:20,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908103749] [2022-03-01 17:09:20,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:20,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:20,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:20,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:20,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:20,914 INFO L87 Difference]: Start difference. First operand 1246 states and 4861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:21,007 INFO L93 Difference]: Finished difference Result 2475 states and 8984 transitions. [2022-03-01 17:09:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:21,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:21,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:21,013 INFO L225 Difference]: With dead ends: 2475 [2022-03-01 17:09:21,013 INFO L226 Difference]: Without dead ends: 2316 [2022-03-01 17:09:21,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:21,013 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 128 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:21,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 142 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-03-01 17:09:21,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 1262. [2022-03-01 17:09:21,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.8929421094369547) internal successors, (4909), 1261 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4909 transitions. [2022-03-01 17:09:21,037 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4909 transitions. Word has length 25 [2022-03-01 17:09:21,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:21,037 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4909 transitions. [2022-03-01 17:09:21,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4909 transitions. [2022-03-01 17:09:21,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:21,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:21,039 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] [2022-03-01 17:09:21,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-03-01 17:09:21,039 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:21,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:21,039 INFO L85 PathProgramCache]: Analyzing trace with hash 580143125, now seen corresponding path program 530 times [2022-03-01 17:09:21,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:21,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859893571] [2022-03-01 17:09:21,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:21,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:21,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:21,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859893571] [2022-03-01 17:09:21,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859893571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:21,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:21,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:21,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104527417] [2022-03-01 17:09:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:21,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:21,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:21,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:21,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:21,145 INFO L87 Difference]: Start difference. First operand 1262 states and 4909 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:21,253 INFO L93 Difference]: Finished difference Result 2505 states and 9077 transitions. [2022-03-01 17:09:21,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:21,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:21,258 INFO L225 Difference]: With dead ends: 2505 [2022-03-01 17:09:21,258 INFO L226 Difference]: Without dead ends: 2300 [2022-03-01 17:09:21,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:21,258 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 125 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:21,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 137 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2022-03-01 17:09:21,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 1246. [2022-03-01 17:09:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.897991967871486) internal successors, (4853), 1245 states have internal predecessors, (4853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4853 transitions. [2022-03-01 17:09:21,279 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4853 transitions. Word has length 25 [2022-03-01 17:09:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:21,279 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4853 transitions. [2022-03-01 17:09:21,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4853 transitions. [2022-03-01 17:09:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:21,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:21,281 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] [2022-03-01 17:09:21,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-03-01 17:09:21,281 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 481831603, now seen corresponding path program 531 times [2022-03-01 17:09:21,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:21,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606676104] [2022-03-01 17:09:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:21,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:21,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:21,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606676104] [2022-03-01 17:09:21,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606676104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:21,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:21,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:21,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832570762] [2022-03-01 17:09:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:21,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:21,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:21,390 INFO L87 Difference]: Start difference. First operand 1246 states and 4853 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:21,486 INFO L93 Difference]: Finished difference Result 2469 states and 8959 transitions. [2022-03-01 17:09:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:21,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:21,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:21,491 INFO L225 Difference]: With dead ends: 2469 [2022-03-01 17:09:21,491 INFO L226 Difference]: Without dead ends: 2310 [2022-03-01 17:09:21,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:21,491 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:21,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 153 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-03-01 17:09:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1262. [2022-03-01 17:09:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1261 states have (on average 3.88659793814433) internal successors, (4901), 1261 states have internal predecessors, (4901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 4901 transitions. [2022-03-01 17:09:21,512 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 4901 transitions. Word has length 25 [2022-03-01 17:09:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 4901 transitions. [2022-03-01 17:09:21,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 4901 transitions. [2022-03-01 17:09:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:21,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:21,515 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] [2022-03-01 17:09:21,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-03-01 17:09:21,515 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:21,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2132639053, now seen corresponding path program 532 times [2022-03-01 17:09:21,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:21,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797801600] [2022-03-01 17:09:21,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:21,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:21,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:21,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797801600] [2022-03-01 17:09:21,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797801600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:21,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:21,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:21,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615290280] [2022-03-01 17:09:21,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:21,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:21,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:21,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:21,601 INFO L87 Difference]: Start difference. First operand 1262 states and 4901 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:21,675 INFO L93 Difference]: Finished difference Result 2493 states and 9035 transitions. [2022-03-01 17:09:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:21,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:21,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:21,680 INFO L225 Difference]: With dead ends: 2493 [2022-03-01 17:09:21,680 INFO L226 Difference]: Without dead ends: 2294 [2022-03-01 17:09:21,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:21,681 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 110 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:21,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 137 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:21,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-03-01 17:09:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1246. [2022-03-01 17:09:21,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.891566265060241) internal successors, (4845), 1245 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4845 transitions. [2022-03-01 17:09:21,704 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4845 transitions. Word has length 25 [2022-03-01 17:09:21,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:21,704 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4845 transitions. [2022-03-01 17:09:21,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4845 transitions. [2022-03-01 17:09:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:21,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:21,706 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] [2022-03-01 17:09:21,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-03-01 17:09:21,706 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:21,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:21,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1898993557, now seen corresponding path program 533 times [2022-03-01 17:09:21,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:21,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927137437] [2022-03-01 17:09:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:21,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:21,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:21,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927137437] [2022-03-01 17:09:21,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927137437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:21,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:21,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:21,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029691096] [2022-03-01 17:09:21,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:21,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:21,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:21,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:21,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:21,812 INFO L87 Difference]: Start difference. First operand 1246 states and 4845 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:21,910 INFO L93 Difference]: Finished difference Result 2541 states and 9221 transitions. [2022-03-01 17:09:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:21,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:21,916 INFO L225 Difference]: With dead ends: 2541 [2022-03-01 17:09:21,916 INFO L226 Difference]: Without dead ends: 2352 [2022-03-01 17:09:21,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:21,916 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 114 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:21,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 144 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:21,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2022-03-01 17:09:21,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 1274. [2022-03-01 17:09:21,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1273 states have (on average 3.875098193244305) internal successors, (4933), 1273 states have internal predecessors, (4933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 4933 transitions. [2022-03-01 17:09:21,939 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 4933 transitions. Word has length 25 [2022-03-01 17:09:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:21,939 INFO L470 AbstractCegarLoop]: Abstraction has 1274 states and 4933 transitions. [2022-03-01 17:09:21,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 4933 transitions. [2022-03-01 17:09:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:21,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:21,941 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] [2022-03-01 17:09:21,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-03-01 17:09:21,942 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:21,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:21,942 INFO L85 PathProgramCache]: Analyzing trace with hash 506849011, now seen corresponding path program 534 times [2022-03-01 17:09:21,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:21,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462832654] [2022-03-01 17:09:21,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:21,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:22,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:22,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462832654] [2022-03-01 17:09:22,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462832654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:22,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:22,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:22,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093440371] [2022-03-01 17:09:22,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:22,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:22,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:22,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:22,017 INFO L87 Difference]: Start difference. First operand 1274 states and 4933 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:22,091 INFO L93 Difference]: Finished difference Result 2535 states and 9176 transitions. [2022-03-01 17:09:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:22,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:22,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:22,096 INFO L225 Difference]: With dead ends: 2535 [2022-03-01 17:09:22,096 INFO L226 Difference]: Without dead ends: 2316 [2022-03-01 17:09:22,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:22,097 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 101 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:22,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 147 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2022-03-01 17:09:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 1238. [2022-03-01 17:09:22,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.89733225545675) internal successors, (4821), 1237 states have internal predecessors, (4821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4821 transitions. [2022-03-01 17:09:22,118 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4821 transitions. Word has length 25 [2022-03-01 17:09:22,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:22,119 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4821 transitions. [2022-03-01 17:09:22,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4821 transitions. [2022-03-01 17:09:22,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:22,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:22,121 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] [2022-03-01 17:09:22,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-03-01 17:09:22,121 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash 147016337, now seen corresponding path program 535 times [2022-03-01 17:09:22,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:22,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024203787] [2022-03-01 17:09:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:22,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:22,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024203787] [2022-03-01 17:09:22,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024203787] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:22,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:22,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:22,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654427898] [2022-03-01 17:09:22,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:22,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:22,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:22,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:22,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:22,196 INFO L87 Difference]: Start difference. First operand 1238 states and 4821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:22,263 INFO L93 Difference]: Finished difference Result 2439 states and 8836 transitions. [2022-03-01 17:09:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:22,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:22,268 INFO L225 Difference]: With dead ends: 2439 [2022-03-01 17:09:22,268 INFO L226 Difference]: Without dead ends: 2280 [2022-03-01 17:09:22,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:22,269 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:22,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 154 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2022-03-01 17:09:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1238. [2022-03-01 17:09:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.8843977364591753) internal successors, (4805), 1237 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4805 transitions. [2022-03-01 17:09:22,290 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4805 transitions. Word has length 25 [2022-03-01 17:09:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:22,291 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4805 transitions. [2022-03-01 17:09:22,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4805 transitions. [2022-03-01 17:09:22,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:22,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:22,293 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] [2022-03-01 17:09:22,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-03-01 17:09:22,294 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:22,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:22,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1442918413, now seen corresponding path program 536 times [2022-03-01 17:09:22,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:22,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894572866] [2022-03-01 17:09:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:22,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:22,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:22,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894572866] [2022-03-01 17:09:22,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894572866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:22,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:22,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:22,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636840570] [2022-03-01 17:09:22,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:22,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:22,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:22,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:22,370 INFO L87 Difference]: Start difference. First operand 1238 states and 4805 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:22,441 INFO L93 Difference]: Finished difference Result 2469 states and 8929 transitions. [2022-03-01 17:09:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:22,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:22,446 INFO L225 Difference]: With dead ends: 2469 [2022-03-01 17:09:22,446 INFO L226 Difference]: Without dead ends: 2264 [2022-03-01 17:09:22,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:22,447 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 136 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:22,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 132 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-03-01 17:09:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1222. [2022-03-01 17:09:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8894348894348894) internal successors, (4749), 1221 states have internal predecessors, (4749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4749 transitions. [2022-03-01 17:09:22,469 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4749 transitions. Word has length 25 [2022-03-01 17:09:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:22,470 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4749 transitions. [2022-03-01 17:09:22,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4749 transitions. [2022-03-01 17:09:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:22,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:22,471 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] [2022-03-01 17:09:22,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-03-01 17:09:22,472 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1516636851, now seen corresponding path program 537 times [2022-03-01 17:09:22,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:22,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483626493] [2022-03-01 17:09:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:22,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:22,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:22,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483626493] [2022-03-01 17:09:22,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483626493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:22,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:22,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:22,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354681046] [2022-03-01 17:09:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:22,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:22,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:22,550 INFO L87 Difference]: Start difference. First operand 1222 states and 4749 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:22,622 INFO L93 Difference]: Finished difference Result 2393 states and 8671 transitions. [2022-03-01 17:09:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:22,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:22,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:22,627 INFO L225 Difference]: With dead ends: 2393 [2022-03-01 17:09:22,628 INFO L226 Difference]: Without dead ends: 2234 [2022-03-01 17:09:22,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:22,628 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:22,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 154 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-03-01 17:09:22,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1238. [2022-03-01 17:09:22,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.877930476960388) internal successors, (4797), 1237 states have internal predecessors, (4797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4797 transitions. [2022-03-01 17:09:22,651 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4797 transitions. Word has length 25 [2022-03-01 17:09:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:22,651 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4797 transitions. [2022-03-01 17:09:22,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4797 transitions. [2022-03-01 17:09:22,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:22,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:22,653 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] [2022-03-01 17:09:22,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-03-01 17:09:22,653 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:22,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash -425635149, now seen corresponding path program 538 times [2022-03-01 17:09:22,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:22,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019467046] [2022-03-01 17:09:22,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:22,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:22,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019467046] [2022-03-01 17:09:22,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019467046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:22,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:22,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:22,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608938458] [2022-03-01 17:09:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:22,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:22,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:22,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:22,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:22,766 INFO L87 Difference]: Start difference. First operand 1238 states and 4797 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:22,870 INFO L93 Difference]: Finished difference Result 2281 states and 8334 transitions. [2022-03-01 17:09:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:22,875 INFO L225 Difference]: With dead ends: 2281 [2022-03-01 17:09:22,875 INFO L226 Difference]: Without dead ends: 2090 [2022-03-01 17:09:22,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:22,876 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:22,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 148 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2022-03-01 17:09:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1222. [2022-03-01 17:09:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8828828828828827) internal successors, (4741), 1221 states have internal predecessors, (4741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4741 transitions. [2022-03-01 17:09:22,898 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4741 transitions. Word has length 25 [2022-03-01 17:09:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:22,898 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4741 transitions. [2022-03-01 17:09:22,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4741 transitions. [2022-03-01 17:09:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:22,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:22,900 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] [2022-03-01 17:09:22,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-03-01 17:09:22,900 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1361168491, now seen corresponding path program 539 times [2022-03-01 17:09:22,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:22,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618275754] [2022-03-01 17:09:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:22,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:22,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:22,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:22,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618275754] [2022-03-01 17:09:22,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618275754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:22,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:22,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:22,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093978593] [2022-03-01 17:09:22,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:22,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:22,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:22,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:22,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:22,985 INFO L87 Difference]: Start difference. First operand 1222 states and 4741 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:23,066 INFO L93 Difference]: Finished difference Result 2431 states and 8808 transitions. [2022-03-01 17:09:23,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:23,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:23,071 INFO L225 Difference]: With dead ends: 2431 [2022-03-01 17:09:23,071 INFO L226 Difference]: Without dead ends: 2242 [2022-03-01 17:09:23,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:23,071 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:23,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 146 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:23,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2022-03-01 17:09:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1246. [2022-03-01 17:09:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.8690763052208834) internal successors, (4817), 1245 states have internal predecessors, (4817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4817 transitions. [2022-03-01 17:09:23,095 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4817 transitions. Word has length 25 [2022-03-01 17:09:23,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:23,095 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4817 transitions. [2022-03-01 17:09:23,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4817 transitions. [2022-03-01 17:09:23,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:23,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:23,097 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] [2022-03-01 17:09:23,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-03-01 17:09:23,097 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:23,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash -2102120589, now seen corresponding path program 540 times [2022-03-01 17:09:23,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:23,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132385927] [2022-03-01 17:09:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:23,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:23,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:23,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132385927] [2022-03-01 17:09:23,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132385927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:23,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:23,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:23,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606388098] [2022-03-01 17:09:23,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:23,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:23,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:23,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:23,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:23,183 INFO L87 Difference]: Start difference. First operand 1246 states and 4817 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:23,257 INFO L93 Difference]: Finished difference Result 2289 states and 8354 transitions. [2022-03-01 17:09:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:23,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:23,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:23,262 INFO L225 Difference]: With dead ends: 2289 [2022-03-01 17:09:23,262 INFO L226 Difference]: Without dead ends: 2082 [2022-03-01 17:09:23,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:23,262 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:23,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 149 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2022-03-01 17:09:23,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1214. [2022-03-01 17:09:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 3.8887056883759277) internal successors, (4717), 1213 states have internal predecessors, (4717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 4717 transitions. [2022-03-01 17:09:23,282 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 4717 transitions. Word has length 25 [2022-03-01 17:09:23,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:23,283 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 4717 transitions. [2022-03-01 17:09:23,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 4717 transitions. [2022-03-01 17:09:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:23,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:23,284 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] [2022-03-01 17:09:23,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-03-01 17:09:23,285 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:23,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash 871793331, now seen corresponding path program 541 times [2022-03-01 17:09:23,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:23,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634352075] [2022-03-01 17:09:23,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:23,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:23,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:23,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:23,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634352075] [2022-03-01 17:09:23,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634352075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:23,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:23,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:23,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555439567] [2022-03-01 17:09:23,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:23,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:23,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:23,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:23,362 INFO L87 Difference]: Start difference. First operand 1214 states and 4717 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:23,438 INFO L93 Difference]: Finished difference Result 2395 states and 8686 transitions. [2022-03-01 17:09:23,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:23,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:23,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:23,442 INFO L225 Difference]: With dead ends: 2395 [2022-03-01 17:09:23,442 INFO L226 Difference]: Without dead ends: 2236 [2022-03-01 17:09:23,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:23,443 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 109 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:23,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 148 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:23,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2236 states. [2022-03-01 17:09:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2236 to 1238. [2022-03-01 17:09:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.8811641067097815) internal successors, (4801), 1237 states have internal predecessors, (4801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4801 transitions. [2022-03-01 17:09:23,463 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4801 transitions. Word has length 25 [2022-03-01 17:09:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:23,463 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4801 transitions. [2022-03-01 17:09:23,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4801 transitions. [2022-03-01 17:09:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:23,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:23,465 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] [2022-03-01 17:09:23,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-03-01 17:09:23,465 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1742677325, now seen corresponding path program 542 times [2022-03-01 17:09:23,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:23,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444300160] [2022-03-01 17:09:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:23,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:23,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444300160] [2022-03-01 17:09:23,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444300160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:23,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:23,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:23,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029601517] [2022-03-01 17:09:23,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:23,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:23,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:23,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:23,541 INFO L87 Difference]: Start difference. First operand 1238 states and 4801 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:23,618 INFO L93 Difference]: Finished difference Result 2419 states and 8762 transitions. [2022-03-01 17:09:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:23,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:23,623 INFO L225 Difference]: With dead ends: 2419 [2022-03-01 17:09:23,623 INFO L226 Difference]: Without dead ends: 2220 [2022-03-01 17:09:23,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:23,623 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 104 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:23,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 155 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:23,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2022-03-01 17:09:23,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1222. [2022-03-01 17:09:23,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8861588861588863) internal successors, (4745), 1221 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4745 transitions. [2022-03-01 17:09:23,644 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4745 transitions. Word has length 25 [2022-03-01 17:09:23,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:23,644 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4745 transitions. [2022-03-01 17:09:23,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4745 transitions. [2022-03-01 17:09:23,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:23,645 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:23,645 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:23,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-03-01 17:09:23,646 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:23,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:23,646 INFO L85 PathProgramCache]: Analyzing trace with hash 24996369, now seen corresponding path program 543 times [2022-03-01 17:09:23,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:23,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168076745] [2022-03-01 17:09:23,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:23,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:23,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:23,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168076745] [2022-03-01 17:09:23,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168076745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:23,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:23,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:23,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687687128] [2022-03-01 17:09:23,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:23,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:23,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:23,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:23,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:23,724 INFO L87 Difference]: Start difference. First operand 1222 states and 4745 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:23,790 INFO L93 Difference]: Finished difference Result 2339 states and 8474 transitions. [2022-03-01 17:09:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:23,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:23,794 INFO L225 Difference]: With dead ends: 2339 [2022-03-01 17:09:23,794 INFO L226 Difference]: Without dead ends: 2180 [2022-03-01 17:09:23,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:23,794 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 115 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:23,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 148 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:23,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2022-03-01 17:09:23,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 1238. [2022-03-01 17:09:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.8746968472109944) internal successors, (4793), 1237 states have internal predecessors, (4793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4793 transitions. [2022-03-01 17:09:23,815 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4793 transitions. Word has length 25 [2022-03-01 17:09:23,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:23,815 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4793 transitions. [2022-03-01 17:09:23,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4793 transitions. [2022-03-01 17:09:23,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:23,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:23,817 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] [2022-03-01 17:09:23,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-03-01 17:09:23,817 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:23,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash 667335347, now seen corresponding path program 544 times [2022-03-01 17:09:23,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:23,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731564614] [2022-03-01 17:09:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:23,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:23,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:23,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731564614] [2022-03-01 17:09:23,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731564614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:23,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:23,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:23,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538681428] [2022-03-01 17:09:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:23,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:23,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:23,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:23,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:23,893 INFO L87 Difference]: Start difference. First operand 1238 states and 4793 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:23,963 INFO L93 Difference]: Finished difference Result 2227 states and 8137 transitions. [2022-03-01 17:09:23,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:23,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:23,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:23,968 INFO L225 Difference]: With dead ends: 2227 [2022-03-01 17:09:23,968 INFO L226 Difference]: Without dead ends: 2036 [2022-03-01 17:09:23,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:23,968 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:23,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 142 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2022-03-01 17:09:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1222. [2022-03-01 17:09:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1221 states have (on average 3.8796068796068797) internal successors, (4737), 1221 states have internal predecessors, (4737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 4737 transitions. [2022-03-01 17:09:23,988 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 4737 transitions. Word has length 25 [2022-03-01 17:09:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:23,988 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 4737 transitions. [2022-03-01 17:09:23,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 4737 transitions. [2022-03-01 17:09:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:23,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:23,990 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] [2022-03-01 17:09:23,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-03-01 17:09:23,990 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:23,990 INFO L85 PathProgramCache]: Analyzing trace with hash 44704435, now seen corresponding path program 545 times [2022-03-01 17:09:23,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:23,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830255113] [2022-03-01 17:09:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:23,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:24,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:24,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830255113] [2022-03-01 17:09:24,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830255113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:24,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:24,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:24,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196951046] [2022-03-01 17:09:24,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:24,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:24,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:24,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:24,065 INFO L87 Difference]: Start difference. First operand 1222 states and 4737 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:24,133 INFO L93 Difference]: Finished difference Result 2243 states and 8209 transitions. [2022-03-01 17:09:24,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:24,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:24,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:24,138 INFO L225 Difference]: With dead ends: 2243 [2022-03-01 17:09:24,138 INFO L226 Difference]: Without dead ends: 2060 [2022-03-01 17:09:24,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:24,138 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 111 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:24,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 141 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2022-03-01 17:09:24,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1246. [2022-03-01 17:09:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1245 states have (on average 3.865863453815261) internal successors, (4813), 1245 states have internal predecessors, (4813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 4813 transitions. [2022-03-01 17:09:24,160 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 4813 transitions. Word has length 25 [2022-03-01 17:09:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:24,160 INFO L470 AbstractCegarLoop]: Abstraction has 1246 states and 4813 transitions. [2022-03-01 17:09:24,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 4813 transitions. [2022-03-01 17:09:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:24,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:24,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:24,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-03-01 17:09:24,162 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1998632559, now seen corresponding path program 546 times [2022-03-01 17:09:24,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:24,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472263772] [2022-03-01 17:09:24,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:24,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:24,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472263772] [2022-03-01 17:09:24,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472263772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:24,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:24,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:24,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736752191] [2022-03-01 17:09:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:24,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:24,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:24,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:24,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:24,254 INFO L87 Difference]: Start difference. First operand 1246 states and 4813 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:24,327 INFO L93 Difference]: Finished difference Result 2059 states and 7596 transitions. [2022-03-01 17:09:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:24,331 INFO L225 Difference]: With dead ends: 2059 [2022-03-01 17:09:24,331 INFO L226 Difference]: Without dead ends: 1852 [2022-03-01 17:09:24,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:24,331 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 84 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:24,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-03-01 17:09:24,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1214. [2022-03-01 17:09:24,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 1213 states have (on average 3.8854080791426218) internal successors, (4713), 1213 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 4713 transitions. [2022-03-01 17:09:24,350 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 4713 transitions. Word has length 25 [2022-03-01 17:09:24,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:24,351 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 4713 transitions. [2022-03-01 17:09:24,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 4713 transitions. [2022-03-01 17:09:24,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:24,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:24,352 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] [2022-03-01 17:09:24,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-03-01 17:09:24,353 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:24,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:24,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1595897621, now seen corresponding path program 547 times [2022-03-01 17:09:24,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:24,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68567989] [2022-03-01 17:09:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:24,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:24,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:24,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68567989] [2022-03-01 17:09:24,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68567989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:24,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:24,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:24,452 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663262770] [2022-03-01 17:09:24,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:24,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:24,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:24,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:24,452 INFO L87 Difference]: Start difference. First operand 1214 states and 4713 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:24,544 INFO L93 Difference]: Finished difference Result 2479 states and 9008 transitions. [2022-03-01 17:09:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:24,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:24,549 INFO L225 Difference]: With dead ends: 2479 [2022-03-01 17:09:24,549 INFO L226 Difference]: Without dead ends: 2290 [2022-03-01 17:09:24,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:24,550 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 116 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:24,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 138 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-03-01 17:09:24,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1254. [2022-03-01 17:09:24,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 3.8762968874700716) internal successors, (4857), 1253 states have internal predecessors, (4857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 4857 transitions. [2022-03-01 17:09:24,571 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 4857 transitions. Word has length 25 [2022-03-01 17:09:24,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:24,571 INFO L470 AbstractCegarLoop]: Abstraction has 1254 states and 4857 transitions. [2022-03-01 17:09:24,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 4857 transitions. [2022-03-01 17:09:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:24,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:24,573 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] [2022-03-01 17:09:24,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-03-01 17:09:24,573 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash 203753075, now seen corresponding path program 548 times [2022-03-01 17:09:24,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:24,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720916786] [2022-03-01 17:09:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:24,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:24,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:24,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720916786] [2022-03-01 17:09:24,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720916786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:24,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:24,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:24,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407848844] [2022-03-01 17:09:24,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:24,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:24,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:24,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:24,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:24,692 INFO L87 Difference]: Start difference. First operand 1254 states and 4857 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:24,792 INFO L93 Difference]: Finished difference Result 2473 states and 8963 transitions. [2022-03-01 17:09:24,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:24,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:24,797 INFO L225 Difference]: With dead ends: 2473 [2022-03-01 17:09:24,797 INFO L226 Difference]: Without dead ends: 2262 [2022-03-01 17:09:24,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:24,797 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 109 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:24,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 140 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:24,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-03-01 17:09:24,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1226. [2022-03-01 17:09:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.883265306122449) internal successors, (4757), 1225 states have internal predecessors, (4757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4757 transitions. [2022-03-01 17:09:24,818 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4757 transitions. Word has length 25 [2022-03-01 17:09:24,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:24,819 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4757 transitions. [2022-03-01 17:09:24,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4757 transitions. [2022-03-01 17:09:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:24,820 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:24,820 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] [2022-03-01 17:09:24,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-03-01 17:09:24,821 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:24,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:24,821 INFO L85 PathProgramCache]: Analyzing trace with hash 749100659, now seen corresponding path program 549 times [2022-03-01 17:09:24,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:24,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707807006] [2022-03-01 17:09:24,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:24,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:24,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:24,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:24,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707807006] [2022-03-01 17:09:24,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707807006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:24,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:24,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:24,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085799803] [2022-03-01 17:09:24,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:24,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:24,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:24,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:24,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:24,939 INFO L87 Difference]: Start difference. First operand 1226 states and 4757 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,043 INFO L93 Difference]: Finished difference Result 2381 states and 8631 transitions. [2022-03-01 17:09:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:25,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,074 INFO L225 Difference]: With dead ends: 2381 [2022-03-01 17:09:25,074 INFO L226 Difference]: Without dead ends: 2192 [2022-03-01 17:09:25,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:25,074 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 113 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 141 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2022-03-01 17:09:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 1250. [2022-03-01 17:09:25,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.8694955964771816) internal successors, (4833), 1249 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4833 transitions. [2022-03-01 17:09:25,095 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4833 transitions. Word has length 25 [2022-03-01 17:09:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:25,095 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4833 transitions. [2022-03-01 17:09:25,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4833 transitions. [2022-03-01 17:09:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:25,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:25,097 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] [2022-03-01 17:09:25,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-03-01 17:09:25,097 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:25,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1702207757, now seen corresponding path program 550 times [2022-03-01 17:09:25,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:25,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643352622] [2022-03-01 17:09:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:25,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:25,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643352622] [2022-03-01 17:09:25,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643352622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:25,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:25,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:25,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76167168] [2022-03-01 17:09:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:25,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:25,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:25,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:25,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:25,181 INFO L87 Difference]: Start difference. First operand 1250 states and 4833 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,257 INFO L93 Difference]: Finished difference Result 2239 states and 8177 transitions. [2022-03-01 17:09:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:25,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:25,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,262 INFO L225 Difference]: With dead ends: 2239 [2022-03-01 17:09:25,262 INFO L226 Difference]: Without dead ends: 2040 [2022-03-01 17:09:25,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:25,262 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 138 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:25,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2022-03-01 17:09:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 1226. [2022-03-01 17:09:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.873469387755102) internal successors, (4745), 1225 states have internal predecessors, (4745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4745 transitions. [2022-03-01 17:09:25,283 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4745 transitions. Word has length 25 [2022-03-01 17:09:25,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:25,284 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4745 transitions. [2022-03-01 17:09:25,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4745 transitions. [2022-03-01 17:09:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:25,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:25,286 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] [2022-03-01 17:09:25,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-03-01 17:09:25,286 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:25,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:25,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1113358033, now seen corresponding path program 551 times [2022-03-01 17:09:25,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:25,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100220959] [2022-03-01 17:09:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:25,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:25,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:25,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100220959] [2022-03-01 17:09:25,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100220959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:25,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:25,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:25,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951605041] [2022-03-01 17:09:25,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:25,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:25,368 INFO L87 Difference]: Start difference. First operand 1226 states and 4745 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,444 INFO L93 Difference]: Finished difference Result 2247 states and 8217 transitions. [2022-03-01 17:09:25,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:25,444 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:25,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,448 INFO L225 Difference]: With dead ends: 2247 [2022-03-01 17:09:25,448 INFO L226 Difference]: Without dead ends: 2064 [2022-03-01 17:09:25,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:25,448 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 103 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 141 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2022-03-01 17:09:25,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1250. [2022-03-01 17:09:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 3.8598879103282626) internal successors, (4821), 1249 states have internal predecessors, (4821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 4821 transitions. [2022-03-01 17:09:25,469 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 4821 transitions. Word has length 25 [2022-03-01 17:09:25,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:25,469 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 4821 transitions. [2022-03-01 17:09:25,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 4821 transitions. [2022-03-01 17:09:25,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:25,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:25,471 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] [2022-03-01 17:09:25,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-03-01 17:09:25,471 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2100546637, now seen corresponding path program 552 times [2022-03-01 17:09:25,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:25,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936916544] [2022-03-01 17:09:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:25,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:25,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:25,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936916544] [2022-03-01 17:09:25,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936916544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:25,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:25,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:25,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592933611] [2022-03-01 17:09:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:25,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:25,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:25,547 INFO L87 Difference]: Start difference. First operand 1250 states and 4821 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,614 INFO L93 Difference]: Finished difference Result 2063 states and 7604 transitions. [2022-03-01 17:09:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:25,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,618 INFO L225 Difference]: With dead ends: 2063 [2022-03-01 17:09:25,618 INFO L226 Difference]: Without dead ends: 1848 [2022-03-01 17:09:25,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:25,619 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 86 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 146 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2022-03-01 17:09:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1210. [2022-03-01 17:09:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.889991728701406) internal successors, (4703), 1209 states have internal predecessors, (4703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4703 transitions. [2022-03-01 17:09:25,638 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4703 transitions. Word has length 25 [2022-03-01 17:09:25,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:25,638 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4703 transitions. [2022-03-01 17:09:25,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4703 transitions. [2022-03-01 17:09:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:25,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:25,640 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] [2022-03-01 17:09:25,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-03-01 17:09:25,640 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:25,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:25,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2045368683, now seen corresponding path program 553 times [2022-03-01 17:09:25,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:25,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550600830] [2022-03-01 17:09:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:25,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:25,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:25,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550600830] [2022-03-01 17:09:25,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550600830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:25,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:25,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:25,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394979149] [2022-03-01 17:09:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:25,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:25,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:25,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:25,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:25,722 INFO L87 Difference]: Start difference. First operand 1210 states and 4703 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,790 INFO L93 Difference]: Finished difference Result 2385 states and 8635 transitions. [2022-03-01 17:09:25,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:25,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:25,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,795 INFO L225 Difference]: With dead ends: 2385 [2022-03-01 17:09:25,795 INFO L226 Difference]: Without dead ends: 2226 [2022-03-01 17:09:25,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:25,795 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 141 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2022-03-01 17:09:25,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1226. [2022-03-01 17:09:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.8783673469387754) internal successors, (4751), 1225 states have internal predecessors, (4751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4751 transitions. [2022-03-01 17:09:25,816 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4751 transitions. Word has length 25 [2022-03-01 17:09:25,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:25,816 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4751 transitions. [2022-03-01 17:09:25,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4751 transitions. [2022-03-01 17:09:25,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:25,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:25,818 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] [2022-03-01 17:09:25,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-03-01 17:09:25,818 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:25,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:25,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1037070699, now seen corresponding path program 554 times [2022-03-01 17:09:25,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:25,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556196988] [2022-03-01 17:09:25,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:25,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:25,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:25,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556196988] [2022-03-01 17:09:25,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556196988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:25,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:25,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:25,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595931061] [2022-03-01 17:09:25,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:25,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:25,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:25,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:25,897 INFO L87 Difference]: Start difference. First operand 1226 states and 4751 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:25,974 INFO L93 Difference]: Finished difference Result 2413 states and 8723 transitions. [2022-03-01 17:09:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:25,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:25,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:25,979 INFO L225 Difference]: With dead ends: 2413 [2022-03-01 17:09:25,979 INFO L226 Difference]: Without dead ends: 2210 [2022-03-01 17:09:25,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:25,979 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:25,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 152 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-03-01 17:09:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1210. [2022-03-01 17:09:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.8833746898263026) internal successors, (4695), 1209 states have internal predecessors, (4695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4695 transitions. [2022-03-01 17:09:25,999 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4695 transitions. Word has length 25 [2022-03-01 17:09:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:26,000 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4695 transitions. [2022-03-01 17:09:26,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4695 transitions. [2022-03-01 17:09:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:26,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:26,001 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] [2022-03-01 17:09:26,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-03-01 17:09:26,002 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:26,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1402801651, now seen corresponding path program 555 times [2022-03-01 17:09:26,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:26,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576397351] [2022-03-01 17:09:26,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:26,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:26,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:26,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576397351] [2022-03-01 17:09:26,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576397351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:26,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:26,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:26,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289866960] [2022-03-01 17:09:26,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:26,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:26,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:26,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:26,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:26,079 INFO L87 Difference]: Start difference. First operand 1210 states and 4695 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:26,141 INFO L93 Difference]: Finished difference Result 2381 states and 8615 transitions. [2022-03-01 17:09:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:26,145 INFO L225 Difference]: With dead ends: 2381 [2022-03-01 17:09:26,145 INFO L226 Difference]: Without dead ends: 2222 [2022-03-01 17:09:26,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:26,145 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 132 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:26,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 126 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-03-01 17:09:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1226. [2022-03-01 17:09:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 3.8718367346938773) internal successors, (4743), 1225 states have internal predecessors, (4743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 4743 transitions. [2022-03-01 17:09:26,166 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 4743 transitions. Word has length 25 [2022-03-01 17:09:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:26,166 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 4743 transitions. [2022-03-01 17:09:26,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 4743 transitions. [2022-03-01 17:09:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:26,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:26,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:26,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-03-01 17:09:26,168 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:26,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1372941973, now seen corresponding path program 556 times [2022-03-01 17:09:26,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:26,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715958484] [2022-03-01 17:09:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:26,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:26,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:26,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:26,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715958484] [2022-03-01 17:09:26,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715958484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:26,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:26,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:26,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25559009] [2022-03-01 17:09:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:26,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:26,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:26,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:26,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:26,245 INFO L87 Difference]: Start difference. First operand 1226 states and 4743 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:26,320 INFO L93 Difference]: Finished difference Result 2405 states and 8691 transitions. [2022-03-01 17:09:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:26,324 INFO L225 Difference]: With dead ends: 2405 [2022-03-01 17:09:26,324 INFO L226 Difference]: Without dead ends: 2206 [2022-03-01 17:09:26,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:26,325 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 104 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:26,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 140 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2022-03-01 17:09:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1210. [2022-03-01 17:09:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.876757650951199) internal successors, (4687), 1209 states have internal predecessors, (4687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4687 transitions. [2022-03-01 17:09:26,345 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4687 transitions. Word has length 25 [2022-03-01 17:09:26,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:26,345 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4687 transitions. [2022-03-01 17:09:26,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4687 transitions. [2022-03-01 17:09:26,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:26,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:26,347 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] [2022-03-01 17:09:26,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-03-01 17:09:26,347 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash -987502955, now seen corresponding path program 557 times [2022-03-01 17:09:26,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:26,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832063338] [2022-03-01 17:09:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:26,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:26,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:26,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:26,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832063338] [2022-03-01 17:09:26,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832063338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:26,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:26,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:26,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453163110] [2022-03-01 17:09:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:26,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:26,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:26,425 INFO L87 Difference]: Start difference. First operand 1210 states and 4687 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:26,504 INFO L93 Difference]: Finished difference Result 2449 states and 8867 transitions. [2022-03-01 17:09:26,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:26,508 INFO L225 Difference]: With dead ends: 2449 [2022-03-01 17:09:26,509 INFO L226 Difference]: Without dead ends: 2262 [2022-03-01 17:09:26,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:26,509 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:26,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 149 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2022-03-01 17:09:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 1238. [2022-03-01 17:09:26,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1237 states have (on average 3.860145513338723) internal successors, (4775), 1237 states have internal predecessors, (4775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 4775 transitions. [2022-03-01 17:09:26,539 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 4775 transitions. Word has length 25 [2022-03-01 17:09:26,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:26,539 INFO L470 AbstractCegarLoop]: Abstraction has 1238 states and 4775 transitions. [2022-03-01 17:09:26,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 4775 transitions. [2022-03-01 17:09:26,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:26,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:26,541 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] [2022-03-01 17:09:26,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-03-01 17:09:26,541 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:26,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1264127347, now seen corresponding path program 558 times [2022-03-01 17:09:26,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:26,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996420639] [2022-03-01 17:09:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:26,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:26,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996420639] [2022-03-01 17:09:26,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996420639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:26,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:26,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:26,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453368659] [2022-03-01 17:09:26,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:26,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:26,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:26,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:26,619 INFO L87 Difference]: Start difference. First operand 1238 states and 4775 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:26,692 INFO L93 Difference]: Finished difference Result 2445 states and 8827 transitions. [2022-03-01 17:09:26,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:26,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:26,697 INFO L225 Difference]: With dead ends: 2445 [2022-03-01 17:09:26,697 INFO L226 Difference]: Without dead ends: 2226 [2022-03-01 17:09:26,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:26,697 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 124 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:26,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 128 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:26,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2226 states. [2022-03-01 17:09:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2226 to 1202. [2022-03-01 17:09:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 3.8825978351373855) internal successors, (4663), 1201 states have internal predecessors, (4663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4663 transitions. [2022-03-01 17:09:26,717 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4663 transitions. Word has length 25 [2022-03-01 17:09:26,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:26,718 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4663 transitions. [2022-03-01 17:09:26,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4663 transitions. [2022-03-01 17:09:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:26,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:26,719 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] [2022-03-01 17:09:26,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-03-01 17:09:26,720 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:26,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash 226537075, now seen corresponding path program 559 times [2022-03-01 17:09:26,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:26,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364556960] [2022-03-01 17:09:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:26,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:26,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:26,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:26,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364556960] [2022-03-01 17:09:26,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364556960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:26,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:26,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:26,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905346374] [2022-03-01 17:09:26,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:26,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:26,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:26,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:26,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:26,812 INFO L87 Difference]: Start difference. First operand 1202 states and 4663 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:26,878 INFO L93 Difference]: Finished difference Result 2349 states and 8487 transitions. [2022-03-01 17:09:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:26,883 INFO L225 Difference]: With dead ends: 2349 [2022-03-01 17:09:26,883 INFO L226 Difference]: Without dead ends: 2190 [2022-03-01 17:09:26,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:26,883 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 116 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:26,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 137 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:26,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2022-03-01 17:09:26,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1202. [2022-03-01 17:09:26,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 3.869275603663614) internal successors, (4647), 1201 states have internal predecessors, (4647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4647 transitions. [2022-03-01 17:09:26,904 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4647 transitions. Word has length 25 [2022-03-01 17:09:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:26,904 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4647 transitions. [2022-03-01 17:09:26,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:26,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4647 transitions. [2022-03-01 17:09:26,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:26,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:26,906 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] [2022-03-01 17:09:26,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-03-01 17:09:26,906 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:26,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:26,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1234835059, now seen corresponding path program 560 times [2022-03-01 17:09:26,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:26,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365046319] [2022-03-01 17:09:26,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:26,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:26,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:26,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365046319] [2022-03-01 17:09:26,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365046319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:26,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:26,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:26,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422908951] [2022-03-01 17:09:26,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:26,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:26,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:26,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:26,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:26,995 INFO L87 Difference]: Start difference. First operand 1202 states and 4647 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:27,067 INFO L93 Difference]: Finished difference Result 2377 states and 8575 transitions. [2022-03-01 17:09:27,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:27,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:27,071 INFO L225 Difference]: With dead ends: 2377 [2022-03-01 17:09:27,071 INFO L226 Difference]: Without dead ends: 2174 [2022-03-01 17:09:27,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:27,072 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 117 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:27,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 143 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-03-01 17:09:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1186. [2022-03-01 17:09:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1185 states have (on average 3.8742616033755275) internal successors, (4591), 1185 states have internal predecessors, (4591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 4591 transitions. [2022-03-01 17:09:27,091 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 4591 transitions. Word has length 25 [2022-03-01 17:09:27,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:27,091 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 4591 transitions. [2022-03-01 17:09:27,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 4591 transitions. [2022-03-01 17:09:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:27,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:27,093 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] [2022-03-01 17:09:27,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-03-01 17:09:27,093 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:27,094 INFO L85 PathProgramCache]: Analyzing trace with hash -569489805, now seen corresponding path program 561 times [2022-03-01 17:09:27,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:27,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589017778] [2022-03-01 17:09:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:27,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:27,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:27,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589017778] [2022-03-01 17:09:27,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589017778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:27,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:27,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:27,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562959432] [2022-03-01 17:09:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:27,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:27,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:27,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:27,182 INFO L87 Difference]: Start difference. First operand 1186 states and 4591 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:27,247 INFO L93 Difference]: Finished difference Result 2305 states and 8327 transitions. [2022-03-01 17:09:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:27,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:27,252 INFO L225 Difference]: With dead ends: 2305 [2022-03-01 17:09:27,252 INFO L226 Difference]: Without dead ends: 2146 [2022-03-01 17:09:27,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:27,252 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 119 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:27,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 138 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:27,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2022-03-01 17:09:27,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1202. [2022-03-01 17:09:27,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1201 states have (on average 3.8626144879267277) internal successors, (4639), 1201 states have internal predecessors, (4639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 4639 transitions. [2022-03-01 17:09:27,271 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 4639 transitions. Word has length 25 [2022-03-01 17:09:27,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:27,272 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 4639 transitions. [2022-03-01 17:09:27,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 4639 transitions. [2022-03-01 17:09:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:27,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:27,273 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] [2022-03-01 17:09:27,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-03-01 17:09:27,273 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:27,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1215021419, now seen corresponding path program 562 times [2022-03-01 17:09:27,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:27,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315809706] [2022-03-01 17:09:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:27,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:27,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:27,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315809706] [2022-03-01 17:09:27,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315809706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:27,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:27,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:27,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679218659] [2022-03-01 17:09:27,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:27,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:27,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:27,366 INFO L87 Difference]: Start difference. First operand 1202 states and 4639 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:27,467 INFO L93 Difference]: Finished difference Result 2193 states and 7990 transitions. [2022-03-01 17:09:27,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:27,467 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:27,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:27,471 INFO L225 Difference]: With dead ends: 2193 [2022-03-01 17:09:27,471 INFO L226 Difference]: Without dead ends: 2002 [2022-03-01 17:09:27,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:27,471 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 106 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:27,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 146 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-03-01 17:09:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1186. [2022-03-01 17:09:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1185 states have (on average 3.8675105485232066) internal successors, (4583), 1185 states have internal predecessors, (4583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 4583 transitions. [2022-03-01 17:09:27,490 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 4583 transitions. Word has length 25 [2022-03-01 17:09:27,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:27,490 INFO L470 AbstractCegarLoop]: Abstraction has 1186 states and 4583 transitions. [2022-03-01 17:09:27,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 4583 transitions. [2022-03-01 17:09:27,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:27,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:27,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:27,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-03-01 17:09:27,493 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:27,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:27,493 INFO L85 PathProgramCache]: Analyzing trace with hash 47302293, now seen corresponding path program 563 times [2022-03-01 17:09:27,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:27,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931519488] [2022-03-01 17:09:27,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:27,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:27,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:27,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931519488] [2022-03-01 17:09:27,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931519488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:27,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:27,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:27,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271617729] [2022-03-01 17:09:27,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:27,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:27,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:27,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:27,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:27,594 INFO L87 Difference]: Start difference. First operand 1186 states and 4583 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:27,689 INFO L93 Difference]: Finished difference Result 2341 states and 8459 transitions. [2022-03-01 17:09:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:27,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:27,693 INFO L225 Difference]: With dead ends: 2341 [2022-03-01 17:09:27,694 INFO L226 Difference]: Without dead ends: 2154 [2022-03-01 17:09:27,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:27,694 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 100 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:27,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 149 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:27,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-03-01 17:09:27,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1210. [2022-03-01 17:09:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 3.8535980148883375) internal successors, (4659), 1209 states have internal predecessors, (4659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 4659 transitions. [2022-03-01 17:09:27,713 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 4659 transitions. Word has length 25 [2022-03-01 17:09:27,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:27,713 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 4659 transitions. [2022-03-01 17:09:27,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 4659 transitions. [2022-03-01 17:09:27,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:27,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:27,715 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] [2022-03-01 17:09:27,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-03-01 17:09:27,715 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1344842253, now seen corresponding path program 564 times [2022-03-01 17:09:27,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:27,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039162496] [2022-03-01 17:09:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:27,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:27,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:27,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039162496] [2022-03-01 17:09:27,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039162496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:27,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:27,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:27,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76176696] [2022-03-01 17:09:27,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:27,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:27,816 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:27,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:27,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:27,816 INFO L87 Difference]: Start difference. First operand 1210 states and 4659 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:27,920 INFO L93 Difference]: Finished difference Result 2201 states and 8010 transitions. [2022-03-01 17:09:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:27,925 INFO L225 Difference]: With dead ends: 2201 [2022-03-01 17:09:27,925 INFO L226 Difference]: Without dead ends: 1994 [2022-03-01 17:09:27,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:27,925 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 87 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:27,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 167 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:27,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2022-03-01 17:09:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1178. [2022-03-01 17:09:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1177 states have (on average 3.873406966864911) internal successors, (4559), 1177 states have internal predecessors, (4559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 4559 transitions. [2022-03-01 17:09:27,946 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 4559 transitions. Word has length 25 [2022-03-01 17:09:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:27,946 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 4559 transitions. [2022-03-01 17:09:27,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 4559 transitions. [2022-03-01 17:09:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:27,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:27,947 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] [2022-03-01 17:09:27,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-03-01 17:09:27,948 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:27,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash -630210991, now seen corresponding path program 565 times [2022-03-01 17:09:27,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:27,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259432875] [2022-03-01 17:09:27,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:27,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:28,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:28,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:28,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259432875] [2022-03-01 17:09:28,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259432875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:28,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:28,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:28,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717269680] [2022-03-01 17:09:28,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:28,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:28,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:28,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:28,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:28,057 INFO L87 Difference]: Start difference. First operand 1178 states and 4559 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:28,161 INFO L93 Difference]: Finished difference Result 2285 states and 8247 transitions. [2022-03-01 17:09:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:28,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:28,166 INFO L225 Difference]: With dead ends: 2285 [2022-03-01 17:09:28,166 INFO L226 Difference]: Without dead ends: 2126 [2022-03-01 17:09:28,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:28,167 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 102 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:28,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 158 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:28,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2022-03-01 17:09:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 1178. [2022-03-01 17:09:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1177 states have (on average 3.8598130841121496) internal successors, (4543), 1177 states have internal predecessors, (4543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 4543 transitions. [2022-03-01 17:09:28,198 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 4543 transitions. Word has length 25 [2022-03-01 17:09:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:28,198 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 4543 transitions. [2022-03-01 17:09:28,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 4543 transitions. [2022-03-01 17:09:28,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:28,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:28,200 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] [2022-03-01 17:09:28,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-03-01 17:09:28,200 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:28,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:28,200 INFO L85 PathProgramCache]: Analyzing trace with hash -660070669, now seen corresponding path program 566 times [2022-03-01 17:09:28,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:28,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708555707] [2022-03-01 17:09:28,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:28,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:28,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:28,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708555707] [2022-03-01 17:09:28,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708555707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:28,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:28,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:28,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700571598] [2022-03-01 17:09:28,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:28,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:28,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:28,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:28,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:28,311 INFO L87 Difference]: Start difference. First operand 1178 states and 4543 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:28,419 INFO L93 Difference]: Finished difference Result 2309 states and 8323 transitions. [2022-03-01 17:09:28,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:28,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:28,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:28,424 INFO L225 Difference]: With dead ends: 2309 [2022-03-01 17:09:28,424 INFO L226 Difference]: Without dead ends: 2110 [2022-03-01 17:09:28,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:28,424 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:28,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 148 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:28,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2022-03-01 17:09:28,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1162. [2022-03-01 17:09:28,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1161 states have (on average 3.8647717484926787) internal successors, (4487), 1161 states have internal predecessors, (4487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 4487 transitions. [2022-03-01 17:09:28,445 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 4487 transitions. Word has length 25 [2022-03-01 17:09:28,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:28,445 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 4487 transitions. [2022-03-01 17:09:28,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 4487 transitions. [2022-03-01 17:09:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:28,447 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:28,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:28,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-03-01 17:09:28,447 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:28,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1111113037, now seen corresponding path program 567 times [2022-03-01 17:09:28,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:28,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103997494] [2022-03-01 17:09:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:28,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:28,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:28,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:28,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103997494] [2022-03-01 17:09:28,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103997494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:28,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:28,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:28,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818945645] [2022-03-01 17:09:28,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:28,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:28,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:28,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:28,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:28,575 INFO L87 Difference]: Start difference. First operand 1162 states and 4487 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:28,652 INFO L93 Difference]: Finished difference Result 2229 states and 8035 transitions. [2022-03-01 17:09:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:28,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:28,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:28,657 INFO L225 Difference]: With dead ends: 2229 [2022-03-01 17:09:28,657 INFO L226 Difference]: Without dead ends: 2070 [2022-03-01 17:09:28,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:28,657 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 140 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:28,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 129 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:28,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-03-01 17:09:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1130. [2022-03-01 17:09:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 3.8609388839681134) internal successors, (4359), 1129 states have internal predecessors, (4359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 4359 transitions. [2022-03-01 17:09:28,678 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 4359 transitions. Word has length 25 [2022-03-01 17:09:28,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:28,678 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 4359 transitions. [2022-03-01 17:09:28,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 4359 transitions. [2022-03-01 17:09:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:28,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:28,680 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] [2022-03-01 17:09:28,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-03-01 17:09:28,681 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:28,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1056884339, now seen corresponding path program 568 times [2022-03-01 17:09:28,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:28,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540984976] [2022-03-01 17:09:28,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:28,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:28,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:28,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540984976] [2022-03-01 17:09:28,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540984976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:28,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:28,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:28,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519978097] [2022-03-01 17:09:28,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:28,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:28,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:28,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:28,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:28,762 INFO L87 Difference]: Start difference. First operand 1130 states and 4359 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:28,832 INFO L93 Difference]: Finished difference Result 2117 states and 7698 transitions. [2022-03-01 17:09:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:28,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:28,836 INFO L225 Difference]: With dead ends: 2117 [2022-03-01 17:09:28,837 INFO L226 Difference]: Without dead ends: 1926 [2022-03-01 17:09:28,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:28,837 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:28,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 139 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:28,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-03-01 17:09:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1114. [2022-03-01 17:09:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.866127583108715) internal successors, (4303), 1113 states have internal predecessors, (4303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4303 transitions. [2022-03-01 17:09:28,856 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4303 transitions. Word has length 25 [2022-03-01 17:09:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:28,856 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4303 transitions. [2022-03-01 17:09:28,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4303 transitions. [2022-03-01 17:09:28,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:28,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:28,858 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] [2022-03-01 17:09:28,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-03-01 17:09:28,858 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:28,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1754306197, now seen corresponding path program 569 times [2022-03-01 17:09:28,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:28,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852207681] [2022-03-01 17:09:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:28,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:28,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:28,935 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852207681] [2022-03-01 17:09:28,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852207681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:28,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:28,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:28,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319041863] [2022-03-01 17:09:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:28,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:28,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:28,935 INFO L87 Difference]: Start difference. First operand 1114 states and 4303 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:29,009 INFO L93 Difference]: Finished difference Result 2133 states and 7770 transitions. [2022-03-01 17:09:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:29,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,013 INFO L225 Difference]: With dead ends: 2133 [2022-03-01 17:09:29,013 INFO L226 Difference]: Without dead ends: 1950 [2022-03-01 17:09:29,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:29,013 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 94 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 158 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:29,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-03-01 17:09:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1138. [2022-03-01 17:09:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.851363236587511) internal successors, (4379), 1137 states have internal predecessors, (4379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 4379 transitions. [2022-03-01 17:09:29,033 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 4379 transitions. Word has length 25 [2022-03-01 17:09:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:29,033 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 4379 transitions. [2022-03-01 17:09:29,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 4379 transitions. [2022-03-01 17:09:29,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:29,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:29,035 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] [2022-03-01 17:09:29,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-03-01 17:09:29,035 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:29,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash -289030797, now seen corresponding path program 570 times [2022-03-01 17:09:29,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:29,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531715286] [2022-03-01 17:09:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:29,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:29,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:29,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:29,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531715286] [2022-03-01 17:09:29,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531715286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:29,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:29,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:29,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650975271] [2022-03-01 17:09:29,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:29,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:29,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:29,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:29,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:29,120 INFO L87 Difference]: Start difference. First operand 1138 states and 4379 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:29,220 INFO L93 Difference]: Finished difference Result 1949 states and 7157 transitions. [2022-03-01 17:09:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,225 INFO L225 Difference]: With dead ends: 1949 [2022-03-01 17:09:29,225 INFO L226 Difference]: Without dead ends: 1742 [2022-03-01 17:09:29,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:29,225 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 85 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:29,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-03-01 17:09:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1106. [2022-03-01 17:09:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1105 states have (on average 3.872398190045249) internal successors, (4279), 1105 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 4279 transitions. [2022-03-01 17:09:29,243 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 4279 transitions. Word has length 25 [2022-03-01 17:09:29,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:29,243 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 4279 transitions. [2022-03-01 17:09:29,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 4279 transitions. [2022-03-01 17:09:29,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:29,245 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:29,245 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] [2022-03-01 17:09:29,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-03-01 17:09:29,245 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:29,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:29,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1300549995, now seen corresponding path program 571 times [2022-03-01 17:09:29,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:29,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936809229] [2022-03-01 17:09:29,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:29,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:29,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:29,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936809229] [2022-03-01 17:09:29,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936809229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:29,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:29,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:29,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016138283] [2022-03-01 17:09:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:29,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:29,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:29,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:29,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:29,331 INFO L87 Difference]: Start difference. First operand 1106 states and 4279 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:29,408 INFO L93 Difference]: Finished difference Result 2181 states and 7970 transitions. [2022-03-01 17:09:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:29,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,413 INFO L225 Difference]: With dead ends: 2181 [2022-03-01 17:09:29,413 INFO L226 Difference]: Without dead ends: 1994 [2022-03-01 17:09:29,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:29,413 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 134 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2022-03-01 17:09:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1146. [2022-03-01 17:09:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 3.862882096069869) internal successors, (4423), 1145 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4423 transitions. [2022-03-01 17:09:29,434 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4423 transitions. Word has length 25 [2022-03-01 17:09:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:29,434 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4423 transitions. [2022-03-01 17:09:29,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4423 transitions. [2022-03-01 17:09:29,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:29,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:29,436 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] [2022-03-01 17:09:29,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-03-01 17:09:29,436 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:29,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:29,437 INFO L85 PathProgramCache]: Analyzing trace with hash 951080307, now seen corresponding path program 572 times [2022-03-01 17:09:29,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:29,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901375921] [2022-03-01 17:09:29,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:29,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:29,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:29,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901375921] [2022-03-01 17:09:29,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901375921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:29,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:29,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:29,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822261818] [2022-03-01 17:09:29,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:29,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:29,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:29,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:29,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:29,520 INFO L87 Difference]: Start difference. First operand 1146 states and 4423 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:29,589 INFO L93 Difference]: Finished difference Result 2177 states and 7930 transitions. [2022-03-01 17:09:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:29,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,593 INFO L225 Difference]: With dead ends: 2177 [2022-03-01 17:09:29,593 INFO L226 Difference]: Without dead ends: 1966 [2022-03-01 17:09:29,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:29,594 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 107 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 138 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:29,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1966 states. [2022-03-01 17:09:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1966 to 1118. [2022-03-01 17:09:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 3.8701880035810206) internal successors, (4323), 1117 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 4323 transitions. [2022-03-01 17:09:29,614 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 4323 transitions. Word has length 25 [2022-03-01 17:09:29,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:29,614 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 4323 transitions. [2022-03-01 17:09:29,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 4323 transitions. [2022-03-01 17:09:29,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:29,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:29,616 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] [2022-03-01 17:09:29,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-03-01 17:09:29,616 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:29,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:29,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2147346957, now seen corresponding path program 573 times [2022-03-01 17:09:29,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:29,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495696867] [2022-03-01 17:09:29,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:29,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:29,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:29,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:29,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495696867] [2022-03-01 17:09:29,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495696867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:29,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:29,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:29,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919077587] [2022-03-01 17:09:29,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:29,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:29,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:29,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:29,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:29,697 INFO L87 Difference]: Start difference. First operand 1118 states and 4323 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:29,769 INFO L93 Difference]: Finished difference Result 2093 states and 7626 transitions. [2022-03-01 17:09:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:29,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:29,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,774 INFO L225 Difference]: With dead ends: 2093 [2022-03-01 17:09:29,774 INFO L226 Difference]: Without dead ends: 1906 [2022-03-01 17:09:29,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:29,774 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 97 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 141 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-03-01 17:09:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1142. [2022-03-01 17:09:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.855390008764242) internal successors, (4399), 1141 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4399 transitions. [2022-03-01 17:09:29,794 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4399 transitions. Word has length 25 [2022-03-01 17:09:29,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:29,794 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4399 transitions. [2022-03-01 17:09:29,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4399 transitions. [2022-03-01 17:09:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:29,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:29,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:29,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-03-01 17:09:29,796 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:29,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:29,796 INFO L85 PathProgramCache]: Analyzing trace with hash -954880525, now seen corresponding path program 574 times [2022-03-01 17:09:29,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:29,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412172158] [2022-03-01 17:09:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:29,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:29,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:29,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412172158] [2022-03-01 17:09:29,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412172158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:29,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:29,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:29,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19502584] [2022-03-01 17:09:29,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:29,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:29,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:29,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:29,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:29,882 INFO L87 Difference]: Start difference. First operand 1142 states and 4399 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:29,946 INFO L93 Difference]: Finished difference Result 1953 states and 7177 transitions. [2022-03-01 17:09:29,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:29,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:29,950 INFO L225 Difference]: With dead ends: 1953 [2022-03-01 17:09:29,950 INFO L226 Difference]: Without dead ends: 1754 [2022-03-01 17:09:29,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:29,950 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 105 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:29,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 128 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:29,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-03-01 17:09:29,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1118. [2022-03-01 17:09:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1117 states have (on average 3.8594449418084156) internal successors, (4311), 1117 states have internal predecessors, (4311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 4311 transitions. [2022-03-01 17:09:29,968 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 4311 transitions. Word has length 25 [2022-03-01 17:09:29,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:29,969 INFO L470 AbstractCegarLoop]: Abstraction has 1118 states and 4311 transitions. [2022-03-01 17:09:29,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:29,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 4311 transitions. [2022-03-01 17:09:29,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:29,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:29,970 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] [2022-03-01 17:09:29,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-03-01 17:09:29,970 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:29,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:29,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1164999343, now seen corresponding path program 575 times [2022-03-01 17:09:29,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:29,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43426024] [2022-03-01 17:09:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:30,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:30,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:30,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43426024] [2022-03-01 17:09:30,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43426024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:30,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:30,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:30,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000976581] [2022-03-01 17:09:30,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:30,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:30,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:30,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:30,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:30,047 INFO L87 Difference]: Start difference. First operand 1118 states and 4311 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:30,114 INFO L93 Difference]: Finished difference Result 1881 states and 6913 transitions. [2022-03-01 17:09:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:30,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:30,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:30,118 INFO L225 Difference]: With dead ends: 1881 [2022-03-01 17:09:30,118 INFO L226 Difference]: Without dead ends: 1698 [2022-03-01 17:09:30,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:30,119 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 82 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:30,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 139 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2022-03-01 17:09:30,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1142. [2022-03-01 17:09:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.8448729184925505) internal successors, (4387), 1141 states have internal predecessors, (4387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4387 transitions. [2022-03-01 17:09:30,137 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4387 transitions. Word has length 25 [2022-03-01 17:09:30,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:30,137 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4387 transitions. [2022-03-01 17:09:30,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4387 transitions. [2022-03-01 17:09:30,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:30,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:30,139 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] [2022-03-01 17:09:30,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-03-01 17:09:30,139 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:30,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:30,139 INFO L85 PathProgramCache]: Analyzing trace with hash -83936717, now seen corresponding path program 576 times [2022-03-01 17:09:30,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:30,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073120270] [2022-03-01 17:09:30,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:30,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:30,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:30,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:30,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073120270] [2022-03-01 17:09:30,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073120270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:30,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:30,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:30,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515809952] [2022-03-01 17:09:30,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:30,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:30,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:30,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:30,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:30,215 INFO L87 Difference]: Start difference. First operand 1142 states and 4387 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:30,274 INFO L93 Difference]: Finished difference Result 1697 states and 6300 transitions. [2022-03-01 17:09:30,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:30,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:30,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:30,278 INFO L225 Difference]: With dead ends: 1697 [2022-03-01 17:09:30,278 INFO L226 Difference]: Without dead ends: 1482 [2022-03-01 17:09:30,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:30,278 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 77 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:30,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 123 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:30,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2022-03-01 17:09:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1102. [2022-03-01 17:09:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 3.877384196185286) internal successors, (4269), 1101 states have internal predecessors, (4269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4269 transitions. [2022-03-01 17:09:30,297 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4269 transitions. Word has length 25 [2022-03-01 17:09:30,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:30,297 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4269 transitions. [2022-03-01 17:09:30,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4269 transitions. [2022-03-01 17:09:30,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:30,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:30,299 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] [2022-03-01 17:09:30,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-03-01 17:09:30,299 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1629748617, now seen corresponding path program 577 times [2022-03-01 17:09:30,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:30,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402371666] [2022-03-01 17:09:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:30,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:30,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:30,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402371666] [2022-03-01 17:09:30,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402371666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:30,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:30,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:30,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141175007] [2022-03-01 17:09:30,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:30,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:30,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:30,375 INFO L87 Difference]: Start difference. First operand 1102 states and 4269 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:30,442 INFO L93 Difference]: Finished difference Result 2267 states and 8325 transitions. [2022-03-01 17:09:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:30,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:30,447 INFO L225 Difference]: With dead ends: 2267 [2022-03-01 17:09:30,447 INFO L226 Difference]: Without dead ends: 2078 [2022-03-01 17:09:30,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:30,447 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 107 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:30,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 134 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2022-03-01 17:09:30,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1152. [2022-03-01 17:09:30,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1151 states have (on average 3.8731537793223283) internal successors, (4458), 1151 states have internal predecessors, (4458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 4458 transitions. [2022-03-01 17:09:30,468 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 4458 transitions. Word has length 25 [2022-03-01 17:09:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:30,468 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 4458 transitions. [2022-03-01 17:09:30,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 4458 transitions. [2022-03-01 17:09:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:30,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:30,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:30,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-03-01 17:09:30,470 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:30,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash 621881685, now seen corresponding path program 578 times [2022-03-01 17:09:30,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:30,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083885259] [2022-03-01 17:09:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:30,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:30,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:30,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:30,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083885259] [2022-03-01 17:09:30,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083885259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:30,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:30,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:30,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845598253] [2022-03-01 17:09:30,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:30,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:30,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:30,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:30,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:30,548 INFO L87 Difference]: Start difference. First operand 1152 states and 4458 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:30,620 INFO L93 Difference]: Finished difference Result 2265 states and 8290 transitions. [2022-03-01 17:09:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:30,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:30,625 INFO L225 Difference]: With dead ends: 2265 [2022-03-01 17:09:30,625 INFO L226 Difference]: Without dead ends: 2048 [2022-03-01 17:09:30,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:30,625 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 106 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:30,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 145 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-03-01 17:09:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1122. [2022-03-01 17:09:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.8813559322033897) internal successors, (4351), 1121 states have internal predecessors, (4351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4351 transitions. [2022-03-01 17:09:30,647 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4351 transitions. Word has length 25 [2022-03-01 17:09:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:30,647 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4351 transitions. [2022-03-01 17:09:30,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4351 transitions. [2022-03-01 17:09:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:30,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:30,649 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] [2022-03-01 17:09:30,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-03-01 17:09:30,649 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:30,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:30,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1818421717, now seen corresponding path program 579 times [2022-03-01 17:09:30,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:30,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206538735] [2022-03-01 17:09:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:30,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:30,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:30,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206538735] [2022-03-01 17:09:30,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206538735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:30,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:30,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:30,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655401823] [2022-03-01 17:09:30,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:30,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:30,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:30,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:30,728 INFO L87 Difference]: Start difference. First operand 1122 states and 4351 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:30,801 INFO L93 Difference]: Finished difference Result 2261 states and 8292 transitions. [2022-03-01 17:09:30,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:30,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:30,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:30,806 INFO L225 Difference]: With dead ends: 2261 [2022-03-01 17:09:30,807 INFO L226 Difference]: Without dead ends: 2072 [2022-03-01 17:09:30,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:30,807 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 94 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:30,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 146 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2072 states. [2022-03-01 17:09:30,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2072 to 1150. [2022-03-01 17:09:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.8633594429939078) internal successors, (4439), 1149 states have internal predecessors, (4439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4439 transitions. [2022-03-01 17:09:30,836 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4439 transitions. Word has length 25 [2022-03-01 17:09:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:30,836 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4439 transitions. [2022-03-01 17:09:30,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4439 transitions. [2022-03-01 17:09:30,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:30,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:30,838 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] [2022-03-01 17:09:30,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-03-01 17:09:30,839 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:30,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:30,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1284079147, now seen corresponding path program 580 times [2022-03-01 17:09:30,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:30,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330437790] [2022-03-01 17:09:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:30,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:30,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:30,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330437790] [2022-03-01 17:09:30,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330437790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:30,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:30,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:30,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665800877] [2022-03-01 17:09:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:30,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:30,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:30,915 INFO L87 Difference]: Start difference. First operand 1150 states and 4439 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:30,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:30,984 INFO L93 Difference]: Finished difference Result 2255 states and 8247 transitions. [2022-03-01 17:09:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:30,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:30,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:30,989 INFO L225 Difference]: With dead ends: 2255 [2022-03-01 17:09:30,989 INFO L226 Difference]: Without dead ends: 2044 [2022-03-01 17:09:30,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:30,989 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 112 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:30,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 126 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2022-03-01 17:09:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 1122. [2022-03-01 17:09:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.8688670829616414) internal successors, (4337), 1121 states have internal predecessors, (4337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4337 transitions. [2022-03-01 17:09:31,011 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4337 transitions. Word has length 25 [2022-03-01 17:09:31,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:31,011 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4337 transitions. [2022-03-01 17:09:31,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4337 transitions. [2022-03-01 17:09:31,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:31,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:31,013 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] [2022-03-01 17:09:31,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-03-01 17:09:31,013 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:31,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1494197965, now seen corresponding path program 581 times [2022-03-01 17:09:31,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:31,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500083098] [2022-03-01 17:09:31,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:31,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:31,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:31,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:31,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500083098] [2022-03-01 17:09:31,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500083098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:31,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:31,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:31,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896824656] [2022-03-01 17:09:31,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:31,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:31,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:31,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:31,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:31,105 INFO L87 Difference]: Start difference. First operand 1122 states and 4337 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:31,178 INFO L93 Difference]: Finished difference Result 2257 states and 8268 transitions. [2022-03-01 17:09:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:31,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:31,183 INFO L225 Difference]: With dead ends: 2257 [2022-03-01 17:09:31,183 INFO L226 Difference]: Without dead ends: 2070 [2022-03-01 17:09:31,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:31,183 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 117 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:31,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 125 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-03-01 17:09:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 1150. [2022-03-01 17:09:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.8511749347258486) internal successors, (4425), 1149 states have internal predecessors, (4425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4425 transitions. [2022-03-01 17:09:31,205 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4425 transitions. Word has length 25 [2022-03-01 17:09:31,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:31,205 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4425 transitions. [2022-03-01 17:09:31,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4425 transitions. [2022-03-01 17:09:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:31,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:31,207 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] [2022-03-01 17:09:31,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-03-01 17:09:31,207 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:31,208 INFO L85 PathProgramCache]: Analyzing trace with hash -413135339, now seen corresponding path program 582 times [2022-03-01 17:09:31,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:31,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212290657] [2022-03-01 17:09:31,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:31,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:31,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:31,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:31,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212290657] [2022-03-01 17:09:31,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212290657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:31,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:31,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:31,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833157678] [2022-03-01 17:09:31,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:31,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:31,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:31,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:31,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:31,311 INFO L87 Difference]: Start difference. First operand 1150 states and 4425 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:31,388 INFO L93 Difference]: Finished difference Result 2253 states and 8228 transitions. [2022-03-01 17:09:31,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:31,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:31,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:31,394 INFO L225 Difference]: With dead ends: 2253 [2022-03-01 17:09:31,394 INFO L226 Difference]: Without dead ends: 2028 [2022-03-01 17:09:31,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:31,394 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 88 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:31,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 152 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-03-01 17:09:31,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1108. [2022-03-01 17:09:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 3.878952122854562) internal successors, (4294), 1107 states have internal predecessors, (4294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4294 transitions. [2022-03-01 17:09:31,426 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4294 transitions. Word has length 25 [2022-03-01 17:09:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:31,426 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4294 transitions. [2022-03-01 17:09:31,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4294 transitions. [2022-03-01 17:09:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:31,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:31,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:31,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-03-01 17:09:31,428 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:31,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:31,429 INFO L85 PathProgramCache]: Analyzing trace with hash 642157141, now seen corresponding path program 583 times [2022-03-01 17:09:31,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:31,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032293124] [2022-03-01 17:09:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:31,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:31,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:31,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:31,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032293124] [2022-03-01 17:09:31,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032293124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:31,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:31,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:31,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684153006] [2022-03-01 17:09:31,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:31,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:31,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:31,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:31,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:31,504 INFO L87 Difference]: Start difference. First operand 1108 states and 4294 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:31,573 INFO L93 Difference]: Finished difference Result 2223 states and 8131 transitions. [2022-03-01 17:09:31,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:31,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:31,578 INFO L225 Difference]: With dead ends: 2223 [2022-03-01 17:09:31,578 INFO L226 Difference]: Without dead ends: 2034 [2022-03-01 17:09:31,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:31,578 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 111 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:31,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 134 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2022-03-01 17:09:31,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 1150. [2022-03-01 17:09:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.866840731070496) internal successors, (4443), 1149 states have internal predecessors, (4443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4443 transitions. [2022-03-01 17:09:31,602 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4443 transitions. Word has length 25 [2022-03-01 17:09:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:31,602 INFO L470 AbstractCegarLoop]: Abstraction has 1150 states and 4443 transitions. [2022-03-01 17:09:31,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4443 transitions. [2022-03-01 17:09:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:31,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:31,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:31,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-03-01 17:09:31,604 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:31,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1401179853, now seen corresponding path program 584 times [2022-03-01 17:09:31,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:31,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027952058] [2022-03-01 17:09:31,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:31,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:31,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:31,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027952058] [2022-03-01 17:09:31,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027952058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:31,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:31,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:31,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500651734] [2022-03-01 17:09:31,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:31,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:31,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:31,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:31,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:31,739 INFO L87 Difference]: Start difference. First operand 1150 states and 4443 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:31,873 INFO L93 Difference]: Finished difference Result 2221 states and 8096 transitions. [2022-03-01 17:09:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:31,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:31,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:31,878 INFO L225 Difference]: With dead ends: 2221 [2022-03-01 17:09:31,878 INFO L226 Difference]: Without dead ends: 2004 [2022-03-01 17:09:31,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:31,878 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 97 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:31,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 139 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2022-03-01 17:09:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1120. [2022-03-01 17:09:31,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.876675603217158) internal successors, (4338), 1119 states have internal predecessors, (4338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4338 transitions. [2022-03-01 17:09:31,909 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4338 transitions. Word has length 25 [2022-03-01 17:09:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:31,909 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4338 transitions. [2022-03-01 17:09:31,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:31,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4338 transitions. [2022-03-01 17:09:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:31,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:31,911 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] [2022-03-01 17:09:31,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-03-01 17:09:31,911 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:31,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:31,912 INFO L85 PathProgramCache]: Analyzing trace with hash -153869739, now seen corresponding path program 585 times [2022-03-01 17:09:31,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:31,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988561813] [2022-03-01 17:09:31,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:31,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:32,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:32,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988561813] [2022-03-01 17:09:32,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988561813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:32,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:32,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:32,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772178940] [2022-03-01 17:09:32,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:32,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:32,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:32,054 INFO L87 Difference]: Start difference. First operand 1120 states and 4338 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:32,179 INFO L93 Difference]: Finished difference Result 2143 states and 7835 transitions. [2022-03-01 17:09:32,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:32,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:32,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:32,185 INFO L225 Difference]: With dead ends: 2143 [2022-03-01 17:09:32,185 INFO L226 Difference]: Without dead ends: 1954 [2022-03-01 17:09:32,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:32,185 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 121 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:32,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 131 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-03-01 17:09:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1144. [2022-03-01 17:09:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.8617672790901136) internal successors, (4414), 1143 states have internal predecessors, (4414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4414 transitions. [2022-03-01 17:09:32,212 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4414 transitions. Word has length 25 [2022-03-01 17:09:32,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:32,212 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4414 transitions. [2022-03-01 17:09:32,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4414 transitions. [2022-03-01 17:09:32,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:32,215 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:32,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:32,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-03-01 17:09:32,215 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:32,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:32,215 INFO L85 PathProgramCache]: Analyzing trace with hash 401918549, now seen corresponding path program 586 times [2022-03-01 17:09:32,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:32,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022998721] [2022-03-01 17:09:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:32,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:32,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022998721] [2022-03-01 17:09:32,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022998721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:32,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:32,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:32,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546114495] [2022-03-01 17:09:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:32,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:32,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:32,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:32,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:32,304 INFO L87 Difference]: Start difference. First operand 1144 states and 4414 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:32,391 INFO L93 Difference]: Finished difference Result 2001 states and 7381 transitions. [2022-03-01 17:09:32,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:32,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:32,397 INFO L225 Difference]: With dead ends: 2001 [2022-03-01 17:09:32,397 INFO L226 Difference]: Without dead ends: 1802 [2022-03-01 17:09:32,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:32,397 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 91 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:32,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 148 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:32,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-03-01 17:09:32,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1120. [2022-03-01 17:09:32,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8659517426273458) internal successors, (4326), 1119 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4326 transitions. [2022-03-01 17:09:32,427 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4326 transitions. Word has length 25 [2022-03-01 17:09:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:32,427 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4326 transitions. [2022-03-01 17:09:32,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4326 transitions. [2022-03-01 17:09:32,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:32,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:32,430 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] [2022-03-01 17:09:32,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-03-01 17:09:32,430 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash 828477875, now seen corresponding path program 587 times [2022-03-01 17:09:32,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:32,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694715014] [2022-03-01 17:09:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:32,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:32,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:32,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694715014] [2022-03-01 17:09:32,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694715014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:32,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:32,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:32,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8488174] [2022-03-01 17:09:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:32,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:32,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:32,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:32,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:32,582 INFO L87 Difference]: Start difference. First operand 1120 states and 4326 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:32,697 INFO L93 Difference]: Finished difference Result 2141 states and 7818 transitions. [2022-03-01 17:09:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:32,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:32,703 INFO L225 Difference]: With dead ends: 2141 [2022-03-01 17:09:32,703 INFO L226 Difference]: Without dead ends: 1954 [2022-03-01 17:09:32,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:32,703 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 103 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:32,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 134 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:32,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-03-01 17:09:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1144. [2022-03-01 17:09:32,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.851268591426072) internal successors, (4402), 1143 states have internal predecessors, (4402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4402 transitions. [2022-03-01 17:09:32,729 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4402 transitions. Word has length 25 [2022-03-01 17:09:32,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:32,730 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4402 transitions. [2022-03-01 17:09:32,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4402 transitions. [2022-03-01 17:09:32,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:32,732 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:32,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:32,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-03-01 17:09:32,732 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash 621669909, now seen corresponding path program 588 times [2022-03-01 17:09:32,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:32,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930699800] [2022-03-01 17:09:32,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:32,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:32,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:32,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930699800] [2022-03-01 17:09:32,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930699800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:32,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:32,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:32,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927271566] [2022-03-01 17:09:32,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:32,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:32,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:32,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:32,822 INFO L87 Difference]: Start difference. First operand 1144 states and 4402 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:32,905 INFO L93 Difference]: Finished difference Result 2001 states and 7369 transitions. [2022-03-01 17:09:32,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:32,906 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:32,911 INFO L225 Difference]: With dead ends: 2001 [2022-03-01 17:09:32,911 INFO L226 Difference]: Without dead ends: 1790 [2022-03-01 17:09:32,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:32,911 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 89 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:32,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 136 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:32,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2022-03-01 17:09:32,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1108. [2022-03-01 17:09:32,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 3.8735320686540198) internal successors, (4288), 1107 states have internal predecessors, (4288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4288 transitions. [2022-03-01 17:09:32,937 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4288 transitions. Word has length 25 [2022-03-01 17:09:32,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:32,937 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4288 transitions. [2022-03-01 17:09:32,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:32,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4288 transitions. [2022-03-01 17:09:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:32,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:32,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:32,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-03-01 17:09:32,939 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:32,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:32,939 INFO L85 PathProgramCache]: Analyzing trace with hash -214590925, now seen corresponding path program 589 times [2022-03-01 17:09:32,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:32,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200574578] [2022-03-01 17:09:32,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:32,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:33,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:33,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200574578] [2022-03-01 17:09:33,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200574578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:33,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:33,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:33,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855818782] [2022-03-01 17:09:33,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:33,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:33,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:33,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:33,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:33,027 INFO L87 Difference]: Start difference. First operand 1108 states and 4288 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:33,094 INFO L93 Difference]: Finished difference Result 2115 states and 7713 transitions. [2022-03-01 17:09:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:33,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:33,099 INFO L225 Difference]: With dead ends: 2115 [2022-03-01 17:09:33,099 INFO L226 Difference]: Without dead ends: 1926 [2022-03-01 17:09:33,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:33,099 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 119 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:33,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 125 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-03-01 17:09:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1148. [2022-03-01 17:09:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.8639930252833476) internal successors, (4432), 1147 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4432 transitions. [2022-03-01 17:09:33,119 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4432 transitions. Word has length 25 [2022-03-01 17:09:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:33,119 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4432 transitions. [2022-03-01 17:09:33,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4432 transitions. [2022-03-01 17:09:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:33,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:33,121 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] [2022-03-01 17:09:33,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-03-01 17:09:33,121 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:33,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:33,122 INFO L85 PathProgramCache]: Analyzing trace with hash 977875507, now seen corresponding path program 590 times [2022-03-01 17:09:33,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:33,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539954742] [2022-03-01 17:09:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:33,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:33,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:33,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:33,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539954742] [2022-03-01 17:09:33,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539954742] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:33,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:33,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:33,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048701635] [2022-03-01 17:09:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:33,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:33,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:33,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:33,230 INFO L87 Difference]: Start difference. First operand 1148 states and 4432 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:33,300 INFO L93 Difference]: Finished difference Result 2109 states and 7668 transitions. [2022-03-01 17:09:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:33,300 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:33,305 INFO L225 Difference]: With dead ends: 2109 [2022-03-01 17:09:33,305 INFO L226 Difference]: Without dead ends: 1898 [2022-03-01 17:09:33,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:33,305 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 119 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:33,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 127 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:33,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2022-03-01 17:09:33,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1120. [2022-03-01 17:09:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.871313672922252) internal successors, (4332), 1119 states have internal predecessors, (4332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4332 transitions. [2022-03-01 17:09:33,324 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4332 transitions. Word has length 25 [2022-03-01 17:09:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:33,324 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4332 transitions. [2022-03-01 17:09:33,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4332 transitions. [2022-03-01 17:09:33,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:33,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:33,326 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] [2022-03-01 17:09:33,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-03-01 17:09:33,326 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:33,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash -695492971, now seen corresponding path program 591 times [2022-03-01 17:09:33,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:33,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160040322] [2022-03-01 17:09:33,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:33,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:33,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:33,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:33,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160040322] [2022-03-01 17:09:33,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160040322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:33,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:33,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:33,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29134255] [2022-03-01 17:09:33,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:33,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:33,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:33,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:33,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:33,411 INFO L87 Difference]: Start difference. First operand 1120 states and 4332 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:33,505 INFO L93 Difference]: Finished difference Result 2017 states and 7336 transitions. [2022-03-01 17:09:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:33,509 INFO L225 Difference]: With dead ends: 2017 [2022-03-01 17:09:33,509 INFO L226 Difference]: Without dead ends: 1828 [2022-03-01 17:09:33,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:33,509 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 98 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:33,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 148 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2022-03-01 17:09:33,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1144. [2022-03-01 17:09:33,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.856517935258093) internal successors, (4408), 1143 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4408 transitions. [2022-03-01 17:09:33,527 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4408 transitions. Word has length 25 [2022-03-01 17:09:33,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:33,527 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4408 transitions. [2022-03-01 17:09:33,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4408 transitions. [2022-03-01 17:09:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:33,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:33,529 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] [2022-03-01 17:09:33,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-03-01 17:09:33,529 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:33,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:33,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1621142989, now seen corresponding path program 592 times [2022-03-01 17:09:33,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:33,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493509127] [2022-03-01 17:09:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:33,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:33,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:33,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493509127] [2022-03-01 17:09:33,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493509127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:33,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:33,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:33,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376375381] [2022-03-01 17:09:33,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:33,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:33,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:33,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:33,633 INFO L87 Difference]: Start difference. First operand 1144 states and 4408 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:33,703 INFO L93 Difference]: Finished difference Result 1875 states and 6882 transitions. [2022-03-01 17:09:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:33,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:33,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:33,707 INFO L225 Difference]: With dead ends: 1875 [2022-03-01 17:09:33,707 INFO L226 Difference]: Without dead ends: 1676 [2022-03-01 17:09:33,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:33,708 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:33,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 146 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-03-01 17:09:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1120. [2022-03-01 17:09:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8605898123324396) internal successors, (4320), 1119 states have internal predecessors, (4320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4320 transitions. [2022-03-01 17:09:33,725 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4320 transitions. Word has length 25 [2022-03-01 17:09:33,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:33,725 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4320 transitions. [2022-03-01 17:09:33,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4320 transitions. [2022-03-01 17:09:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:33,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:33,727 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] [2022-03-01 17:09:33,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-03-01 17:09:33,727 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:33,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:33,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1780491725, now seen corresponding path program 593 times [2022-03-01 17:09:33,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:33,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6374446] [2022-03-01 17:09:33,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:33,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:33,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:33,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6374446] [2022-03-01 17:09:33,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6374446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:33,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:33,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:33,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457032093] [2022-03-01 17:09:33,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:33,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:33,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:33,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:33,802 INFO L87 Difference]: Start difference. First operand 1120 states and 4320 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:33,871 INFO L93 Difference]: Finished difference Result 1883 states and 6922 transitions. [2022-03-01 17:09:33,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:33,876 INFO L225 Difference]: With dead ends: 1883 [2022-03-01 17:09:33,876 INFO L226 Difference]: Without dead ends: 1700 [2022-03-01 17:09:33,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:33,891 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:33,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 145 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:33,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-03-01 17:09:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1144. [2022-03-01 17:09:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.8460192475940507) internal successors, (4396), 1143 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4396 transitions. [2022-03-01 17:09:33,913 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4396 transitions. Word has length 25 [2022-03-01 17:09:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:33,913 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4396 transitions. [2022-03-01 17:09:33,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4396 transitions. [2022-03-01 17:09:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:33,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:33,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:33,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-03-01 17:09:33,915 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash -699429099, now seen corresponding path program 594 times [2022-03-01 17:09:33,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:33,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204505136] [2022-03-01 17:09:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:33,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:33,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:33,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204505136] [2022-03-01 17:09:33,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204505136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:33,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:33,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:33,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856154866] [2022-03-01 17:09:33,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:33,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:33,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:33,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:33,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:33,990 INFO L87 Difference]: Start difference. First operand 1144 states and 4396 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:34,054 INFO L93 Difference]: Finished difference Result 1699 states and 6309 transitions. [2022-03-01 17:09:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:34,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:34,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:34,057 INFO L225 Difference]: With dead ends: 1699 [2022-03-01 17:09:34,057 INFO L226 Difference]: Without dead ends: 1488 [2022-03-01 17:09:34,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:34,058 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 81 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:34,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 138 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-03-01 17:09:34,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1108. [2022-03-01 17:09:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 1107 states have (on average 3.868112014453478) internal successors, (4282), 1107 states have internal predecessors, (4282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 4282 transitions. [2022-03-01 17:09:34,079 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 4282 transitions. Word has length 25 [2022-03-01 17:09:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,079 INFO L470 AbstractCegarLoop]: Abstraction has 1108 states and 4282 transitions. [2022-03-01 17:09:34,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 4282 transitions. [2022-03-01 17:09:34,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:34,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,081 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] [2022-03-01 17:09:34,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-03-01 17:09:34,081 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:34,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,081 INFO L85 PathProgramCache]: Analyzing trace with hash 757805585, now seen corresponding path program 595 times [2022-03-01 17:09:34,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980639745] [2022-03-01 17:09:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:34,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:34,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980639745] [2022-03-01 17:09:34,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980639745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:34,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:34,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:34,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249628817] [2022-03-01 17:09:34,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:34,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:34,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:34,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:34,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:34,155 INFO L87 Difference]: Start difference. First operand 1108 states and 4282 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:34,217 INFO L93 Difference]: Finished difference Result 1803 states and 6620 transitions. [2022-03-01 17:09:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:34,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:34,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:34,221 INFO L225 Difference]: With dead ends: 1803 [2022-03-01 17:09:34,221 INFO L226 Difference]: Without dead ends: 1616 [2022-03-01 17:09:34,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:34,221 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 101 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:34,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 127 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:34,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-03-01 17:09:34,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1148. [2022-03-01 17:09:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.858761987794246) internal successors, (4426), 1147 states have internal predecessors, (4426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4426 transitions. [2022-03-01 17:09:34,239 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4426 transitions. Word has length 25 [2022-03-01 17:09:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,239 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4426 transitions. [2022-03-01 17:09:34,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4426 transitions. [2022-03-01 17:09:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:34,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,241 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] [2022-03-01 17:09:34,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-03-01 17:09:34,241 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:34,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1838868211, now seen corresponding path program 596 times [2022-03-01 17:09:34,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628056464] [2022-03-01 17:09:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:34,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:34,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628056464] [2022-03-01 17:09:34,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628056464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:34,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:34,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:34,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352962009] [2022-03-01 17:09:34,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:34,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:34,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:34,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:34,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:34,322 INFO L87 Difference]: Start difference. First operand 1148 states and 4426 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:34,387 INFO L93 Difference]: Finished difference Result 1799 states and 6580 transitions. [2022-03-01 17:09:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:34,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:34,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:34,391 INFO L225 Difference]: With dead ends: 1799 [2022-03-01 17:09:34,391 INFO L226 Difference]: Without dead ends: 1588 [2022-03-01 17:09:34,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:34,391 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 91 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:34,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 127 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-03-01 17:09:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1120. [2022-03-01 17:09:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8659517426273458) internal successors, (4326), 1119 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4326 transitions. [2022-03-01 17:09:34,409 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4326 transitions. Word has length 25 [2022-03-01 17:09:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,409 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4326 transitions. [2022-03-01 17:09:34,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4326 transitions. [2022-03-01 17:09:34,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:34,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,411 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] [2022-03-01 17:09:34,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-03-01 17:09:34,411 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:34,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,412 INFO L85 PathProgramCache]: Analyzing trace with hash 276903539, now seen corresponding path program 597 times [2022-03-01 17:09:34,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435639401] [2022-03-01 17:09:34,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:34,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:34,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435639401] [2022-03-01 17:09:34,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435639401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:34,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:34,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:34,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22186852] [2022-03-01 17:09:34,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:34,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:34,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:34,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:34,505 INFO L87 Difference]: Start difference. First operand 1120 states and 4326 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:34,569 INFO L93 Difference]: Finished difference Result 1715 states and 6276 transitions. [2022-03-01 17:09:34,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:34,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:34,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:34,573 INFO L225 Difference]: With dead ends: 1715 [2022-03-01 17:09:34,573 INFO L226 Difference]: Without dead ends: 1528 [2022-03-01 17:09:34,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:34,573 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 86 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:34,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 131 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-03-01 17:09:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1144. [2022-03-01 17:09:34,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.851268591426072) internal successors, (4402), 1143 states have internal predecessors, (4402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4402 transitions. [2022-03-01 17:09:34,591 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4402 transitions. Word has length 25 [2022-03-01 17:09:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,591 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4402 transitions. [2022-03-01 17:09:34,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4402 transitions. [2022-03-01 17:09:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:34,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,593 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] [2022-03-01 17:09:34,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2022-03-01 17:09:34,593 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1411342733, now seen corresponding path program 598 times [2022-03-01 17:09:34,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618039154] [2022-03-01 17:09:34,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:34,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:34,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618039154] [2022-03-01 17:09:34,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618039154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:34,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:34,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:34,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910064904] [2022-03-01 17:09:34,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:34,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:34,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:34,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:34,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:34,711 INFO L87 Difference]: Start difference. First operand 1144 states and 4402 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:34,803 INFO L93 Difference]: Finished difference Result 1575 states and 5827 transitions. [2022-03-01 17:09:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:34,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:34,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:34,806 INFO L225 Difference]: With dead ends: 1575 [2022-03-01 17:09:34,806 INFO L226 Difference]: Without dead ends: 1376 [2022-03-01 17:09:34,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:34,807 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 87 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:34,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 117 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:34,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2022-03-01 17:09:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1120. [2022-03-01 17:09:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1119 states have (on average 3.8552278820375334) internal successors, (4314), 1119 states have internal predecessors, (4314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 4314 transitions. [2022-03-01 17:09:34,825 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 4314 transitions. Word has length 25 [2022-03-01 17:09:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,825 INFO L470 AbstractCegarLoop]: Abstraction has 1120 states and 4314 transitions. [2022-03-01 17:09:34,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 4314 transitions. [2022-03-01 17:09:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:34,827 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,827 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:34,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2022-03-01 17:09:34,827 INFO L402 AbstractCegarLoop]: === Iteration 604 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,827 INFO L85 PathProgramCache]: Analyzing trace with hash 664908501, now seen corresponding path program 599 times [2022-03-01 17:09:34,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089608603] [2022-03-01 17:09:34,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:34,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:34,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089608603] [2022-03-01 17:09:34,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089608603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:34,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:34,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:34,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526512138] [2022-03-01 17:09:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:34,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:34,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:34,907 INFO L87 Difference]: Start difference. First operand 1120 states and 4314 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:34,964 INFO L93 Difference]: Finished difference Result 1503 states and 5563 transitions. [2022-03-01 17:09:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:34,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:34,967 INFO L225 Difference]: With dead ends: 1503 [2022-03-01 17:09:34,967 INFO L226 Difference]: Without dead ends: 1320 [2022-03-01 17:09:34,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:34,968 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 89 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:34,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 109 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:34,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-03-01 17:09:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1144. [2022-03-01 17:09:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.8407699037620295) internal successors, (4390), 1143 states have internal predecessors, (4390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4390 transitions. [2022-03-01 17:09:34,985 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4390 transitions. Word has length 25 [2022-03-01 17:09:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:34,985 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4390 transitions. [2022-03-01 17:09:34,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4390 transitions. [2022-03-01 17:09:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:34,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:34,987 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] [2022-03-01 17:09:34,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2022-03-01 17:09:34,987 INFO L402 AbstractCegarLoop]: === Iteration 605 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -181888461, now seen corresponding path program 600 times [2022-03-01 17:09:34,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:34,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140869138] [2022-03-01 17:09:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:34,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:35,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:35,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140869138] [2022-03-01 17:09:35,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140869138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:35,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:35,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:35,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75001058] [2022-03-01 17:09:35,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:35,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:35,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:35,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:35,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:35,068 INFO L87 Difference]: Start difference. First operand 1144 states and 4390 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:35,121 INFO L93 Difference]: Finished difference Result 1319 states and 4950 transitions. [2022-03-01 17:09:35,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:35,121 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:35,123 INFO L225 Difference]: With dead ends: 1319 [2022-03-01 17:09:35,123 INFO L226 Difference]: Without dead ends: 1100 [2022-03-01 17:09:35,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:35,124 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 76 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:35,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 104 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-03-01 17:09:35,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1100. [2022-03-01 17:09:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.880800727934486) internal successors, (4265), 1099 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4265 transitions. [2022-03-01 17:09:35,146 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4265 transitions. Word has length 25 [2022-03-01 17:09:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:35,146 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4265 transitions. [2022-03-01 17:09:35,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4265 transitions. [2022-03-01 17:09:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:35,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:35,148 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] [2022-03-01 17:09:35,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2022-03-01 17:09:35,148 INFO L402 AbstractCegarLoop]: === Iteration 606 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:35,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash 821229273, now seen corresponding path program 601 times [2022-03-01 17:09:35,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:35,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053936212] [2022-03-01 17:09:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:35,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:35,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:35,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:35,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053936212] [2022-03-01 17:09:35,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053936212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:35,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:35,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:35,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709654814] [2022-03-01 17:09:35,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:35,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:35,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:35,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:35,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:35,259 INFO L87 Difference]: Start difference. First operand 1100 states and 4265 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:35,376 INFO L93 Difference]: Finished difference Result 2103 states and 7646 transitions. [2022-03-01 17:09:35,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:35,376 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:35,381 INFO L225 Difference]: With dead ends: 2103 [2022-03-01 17:09:35,381 INFO L226 Difference]: Without dead ends: 1914 [2022-03-01 17:09:35,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:35,381 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 117 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:35,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 112 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:35,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2022-03-01 17:09:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1144. [2022-03-01 17:09:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1143 states have (on average 3.869641294838145) internal successors, (4423), 1143 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 4423 transitions. [2022-03-01 17:09:35,401 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 4423 transitions. Word has length 25 [2022-03-01 17:09:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:35,401 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 4423 transitions. [2022-03-01 17:09:35,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 4423 transitions. [2022-03-01 17:09:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:35,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:35,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:35,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2022-03-01 17:09:35,403 INFO L402 AbstractCegarLoop]: === Iteration 607 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:35,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:35,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1222107721, now seen corresponding path program 602 times [2022-03-01 17:09:35,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:35,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177809054] [2022-03-01 17:09:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:35,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:35,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:35,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177809054] [2022-03-01 17:09:35,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177809054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:35,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:35,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:35,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270325785] [2022-03-01 17:09:35,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:35,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:35,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:35,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:35,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:35,484 INFO L87 Difference]: Start difference. First operand 1144 states and 4423 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:35,569 INFO L93 Difference]: Finished difference Result 2101 states and 7611 transitions. [2022-03-01 17:09:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:35,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:35,574 INFO L225 Difference]: With dead ends: 2101 [2022-03-01 17:09:35,574 INFO L226 Difference]: Without dead ends: 1884 [2022-03-01 17:09:35,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:35,575 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 96 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:35,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 131 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-03-01 17:09:35,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1114. [2022-03-01 17:09:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.8778077268643307) internal successors, (4316), 1113 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4316 transitions. [2022-03-01 17:09:35,598 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4316 transitions. Word has length 25 [2022-03-01 17:09:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:35,598 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4316 transitions. [2022-03-01 17:09:35,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4316 transitions. [2022-03-01 17:09:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:35,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:35,601 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] [2022-03-01 17:09:35,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2022-03-01 17:09:35,601 INFO L402 AbstractCegarLoop]: === Iteration 608 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:35,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:35,601 INFO L85 PathProgramCache]: Analyzing trace with hash -25567689, now seen corresponding path program 603 times [2022-03-01 17:09:35,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:35,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923498993] [2022-03-01 17:09:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:35,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:35,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:35,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923498993] [2022-03-01 17:09:35,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923498993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:35,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:35,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:35,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355684838] [2022-03-01 17:09:35,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:35,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:35,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:35,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:35,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:35,693 INFO L87 Difference]: Start difference. First operand 1114 states and 4316 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:35,788 INFO L93 Difference]: Finished difference Result 2097 states and 7613 transitions. [2022-03-01 17:09:35,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:35,788 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:35,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:35,792 INFO L225 Difference]: With dead ends: 2097 [2022-03-01 17:09:35,793 INFO L226 Difference]: Without dead ends: 1908 [2022-03-01 17:09:35,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:35,793 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 105 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:35,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 119 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-03-01 17:09:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1142. [2022-03-01 17:09:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.85977212971078) internal successors, (4404), 1141 states have internal predecessors, (4404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4404 transitions. [2022-03-01 17:09:35,812 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4404 transitions. Word has length 25 [2022-03-01 17:09:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:35,812 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4404 transitions. [2022-03-01 17:09:35,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4404 transitions. [2022-03-01 17:09:35,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:35,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:35,814 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] [2022-03-01 17:09:35,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2022-03-01 17:09:35,814 INFO L402 AbstractCegarLoop]: === Iteration 609 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:35,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1166898743, now seen corresponding path program 604 times [2022-03-01 17:09:35,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:35,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043003961] [2022-03-01 17:09:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:35,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:35,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:35,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043003961] [2022-03-01 17:09:35,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043003961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:35,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:35,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:35,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060360733] [2022-03-01 17:09:35,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:35,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:35,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:35,889 INFO L87 Difference]: Start difference. First operand 1142 states and 4404 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:35,964 INFO L93 Difference]: Finished difference Result 2091 states and 7568 transitions. [2022-03-01 17:09:35,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:35,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:35,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:35,969 INFO L225 Difference]: With dead ends: 2091 [2022-03-01 17:09:35,969 INFO L226 Difference]: Without dead ends: 1880 [2022-03-01 17:09:35,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:35,969 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 107 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:35,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 130 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-03-01 17:09:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1114. [2022-03-01 17:09:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1113 states have (on average 3.8652291105121295) internal successors, (4302), 1113 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 4302 transitions. [2022-03-01 17:09:35,989 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 4302 transitions. Word has length 25 [2022-03-01 17:09:35,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:35,989 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 4302 transitions. [2022-03-01 17:09:35,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 4302 transitions. [2022-03-01 17:09:35,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:35,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:35,991 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] [2022-03-01 17:09:35,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2022-03-01 17:09:35,991 INFO L402 AbstractCegarLoop]: === Iteration 610 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:35,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash 956779925, now seen corresponding path program 605 times [2022-03-01 17:09:35,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:35,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000668050] [2022-03-01 17:09:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:35,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:36,083 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:36,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000668050] [2022-03-01 17:09:36,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000668050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:36,084 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:36,084 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:36,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919558621] [2022-03-01 17:09:36,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:36,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:36,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:36,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:36,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:36,084 INFO L87 Difference]: Start difference. First operand 1114 states and 4302 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:36,187 INFO L93 Difference]: Finished difference Result 2093 states and 7589 transitions. [2022-03-01 17:09:36,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:36,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:36,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:36,192 INFO L225 Difference]: With dead ends: 2093 [2022-03-01 17:09:36,192 INFO L226 Difference]: Without dead ends: 1906 [2022-03-01 17:09:36,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:36,192 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:36,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 122 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2022-03-01 17:09:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1142. [2022-03-01 17:09:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.847502191060473) internal successors, (4390), 1141 states have internal predecessors, (4390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4390 transitions. [2022-03-01 17:09:36,211 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4390 transitions. Word has length 25 [2022-03-01 17:09:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:36,211 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4390 transitions. [2022-03-01 17:09:36,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4390 transitions. [2022-03-01 17:09:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:36,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:36,213 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] [2022-03-01 17:09:36,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2022-03-01 17:09:36,213 INFO L402 AbstractCegarLoop]: === Iteration 611 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:36,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:36,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2037842551, now seen corresponding path program 606 times [2022-03-01 17:09:36,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:36,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55343806] [2022-03-01 17:09:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:36,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:36,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:36,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55343806] [2022-03-01 17:09:36,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55343806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:36,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:36,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:36,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711872289] [2022-03-01 17:09:36,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:36,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:36,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:36,324 INFO L87 Difference]: Start difference. First operand 1142 states and 4390 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:36,409 INFO L93 Difference]: Finished difference Result 2089 states and 7549 transitions. [2022-03-01 17:09:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:36,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:36,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:36,413 INFO L225 Difference]: With dead ends: 2089 [2022-03-01 17:09:36,413 INFO L226 Difference]: Without dead ends: 1864 [2022-03-01 17:09:36,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:36,414 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:36,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 118 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:36,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-01 17:09:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1100. [2022-03-01 17:09:36,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.875341219290264) internal successors, (4259), 1099 states have internal predecessors, (4259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4259 transitions. [2022-03-01 17:09:36,433 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4259 transitions. Word has length 25 [2022-03-01 17:09:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:36,434 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4259 transitions. [2022-03-01 17:09:36,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4259 transitions. [2022-03-01 17:09:36,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:36,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:36,435 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] [2022-03-01 17:09:36,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2022-03-01 17:09:36,436 INFO L402 AbstractCegarLoop]: === Iteration 612 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:36,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:36,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1201832265, now seen corresponding path program 607 times [2022-03-01 17:09:36,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:36,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135668508] [2022-03-01 17:09:36,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:36,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:36,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:36,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135668508] [2022-03-01 17:09:36,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135668508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:36,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:36,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:36,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043735810] [2022-03-01 17:09:36,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:36,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:36,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:36,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:36,513 INFO L87 Difference]: Start difference. First operand 1100 states and 4259 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:36,589 INFO L93 Difference]: Finished difference Result 2085 states and 7571 transitions. [2022-03-01 17:09:36,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:36,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:36,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:36,593 INFO L225 Difference]: With dead ends: 2085 [2022-03-01 17:09:36,593 INFO L226 Difference]: Without dead ends: 1896 [2022-03-01 17:09:36,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:36,594 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 112 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:36,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 123 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:36,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2022-03-01 17:09:36,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1142. [2022-03-01 17:09:36,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 3.8632778264680105) internal successors, (4408), 1141 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 4408 transitions. [2022-03-01 17:09:36,612 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 4408 transitions. Word has length 25 [2022-03-01 17:09:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:36,612 INFO L470 AbstractCegarLoop]: Abstraction has 1142 states and 4408 transitions. [2022-03-01 17:09:36,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 4408 transitions. [2022-03-01 17:09:36,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:36,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:36,614 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] [2022-03-01 17:09:36,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2022-03-01 17:09:36,614 INFO L402 AbstractCegarLoop]: === Iteration 613 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:36,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1049798037, now seen corresponding path program 608 times [2022-03-01 17:09:36,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:36,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843153893] [2022-03-01 17:09:36,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:36,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:36,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:36,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:36,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843153893] [2022-03-01 17:09:36,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843153893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:36,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:36,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:36,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449243166] [2022-03-01 17:09:36,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:36,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:36,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:36,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:36,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:36,697 INFO L87 Difference]: Start difference. First operand 1142 states and 4408 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:36,773 INFO L93 Difference]: Finished difference Result 2083 states and 7536 transitions. [2022-03-01 17:09:36,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:36,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:36,777 INFO L225 Difference]: With dead ends: 2083 [2022-03-01 17:09:36,777 INFO L226 Difference]: Without dead ends: 1866 [2022-03-01 17:09:36,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:36,778 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:36,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 126 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-03-01 17:09:36,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1112. [2022-03-01 17:09:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.8730873087308733) internal successors, (4303), 1111 states have internal predecessors, (4303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4303 transitions. [2022-03-01 17:09:36,798 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4303 transitions. Word has length 25 [2022-03-01 17:09:36,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:36,798 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4303 transitions. [2022-03-01 17:09:36,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4303 transitions. [2022-03-01 17:09:36,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:36,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:36,800 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] [2022-03-01 17:09:36,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2022-03-01 17:09:36,800 INFO L402 AbstractCegarLoop]: === Iteration 614 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1997859145, now seen corresponding path program 609 times [2022-03-01 17:09:36,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:36,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798432489] [2022-03-01 17:09:36,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:36,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:36,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:36,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798432489] [2022-03-01 17:09:36,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798432489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:36,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:36,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:36,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783233962] [2022-03-01 17:09:36,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:36,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:36,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:36,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:36,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:36,933 INFO L87 Difference]: Start difference. First operand 1112 states and 4303 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:37,046 INFO L93 Difference]: Finished difference Result 2067 states and 7496 transitions. [2022-03-01 17:09:37,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:37,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:37,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:37,050 INFO L225 Difference]: With dead ends: 2067 [2022-03-01 17:09:37,050 INFO L226 Difference]: Without dead ends: 1878 [2022-03-01 17:09:37,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:37,050 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 93 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:37,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 131 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2022-03-01 17:09:37,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1136. [2022-03-01 17:09:37,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8581497797356827) internal successors, (4379), 1135 states have internal predecessors, (4379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4379 transitions. [2022-03-01 17:09:37,068 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4379 transitions. Word has length 25 [2022-03-01 17:09:37,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:37,068 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4379 transitions. [2022-03-01 17:09:37,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4379 transitions. [2022-03-01 17:09:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:37,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:37,070 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] [2022-03-01 17:09:37,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613 [2022-03-01 17:09:37,070 INFO L402 AbstractCegarLoop]: === Iteration 615 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:37,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:37,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1442070857, now seen corresponding path program 610 times [2022-03-01 17:09:37,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:37,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953218722] [2022-03-01 17:09:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:37,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:37,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:37,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:37,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953218722] [2022-03-01 17:09:37,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953218722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:37,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:37,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:37,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837371304] [2022-03-01 17:09:37,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:37,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:37,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:37,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:37,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:37,177 INFO L87 Difference]: Start difference. First operand 1136 states and 4379 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:37,286 INFO L93 Difference]: Finished difference Result 2053 states and 7427 transitions. [2022-03-01 17:09:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:37,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:37,290 INFO L225 Difference]: With dead ends: 2053 [2022-03-01 17:09:37,290 INFO L226 Difference]: Without dead ends: 1854 [2022-03-01 17:09:37,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:37,291 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 95 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:37,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 127 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-03-01 17:09:37,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1112. [2022-03-01 17:09:37,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.862286228622862) internal successors, (4291), 1111 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4291 transitions. [2022-03-01 17:09:37,310 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4291 transitions. Word has length 25 [2022-03-01 17:09:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:37,311 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4291 transitions. [2022-03-01 17:09:37,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4291 transitions. [2022-03-01 17:09:37,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:37,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:37,312 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] [2022-03-01 17:09:37,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2022-03-01 17:09:37,313 INFO L402 AbstractCegarLoop]: === Iteration 616 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:37,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:37,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1015511531, now seen corresponding path program 611 times [2022-03-01 17:09:37,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:37,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95920835] [2022-03-01 17:09:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:37,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:37,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:37,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95920835] [2022-03-01 17:09:37,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95920835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:37,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:37,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:37,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87613254] [2022-03-01 17:09:37,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:37,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:37,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:37,405 INFO L87 Difference]: Start difference. First operand 1112 states and 4291 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:37,475 INFO L93 Difference]: Finished difference Result 2063 states and 7474 transitions. [2022-03-01 17:09:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:37,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:37,479 INFO L225 Difference]: With dead ends: 2063 [2022-03-01 17:09:37,480 INFO L226 Difference]: Without dead ends: 1876 [2022-03-01 17:09:37,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:37,480 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 118 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:37,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 112 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:37,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2022-03-01 17:09:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1136. [2022-03-01 17:09:37,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8475770925110133) internal successors, (4367), 1135 states have internal predecessors, (4367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4367 transitions. [2022-03-01 17:09:37,501 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4367 transitions. Word has length 25 [2022-03-01 17:09:37,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:37,501 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4367 transitions. [2022-03-01 17:09:37,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4367 transitions. [2022-03-01 17:09:37,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:37,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:37,503 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] [2022-03-01 17:09:37,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2022-03-01 17:09:37,503 INFO L402 AbstractCegarLoop]: === Iteration 617 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1222319497, now seen corresponding path program 612 times [2022-03-01 17:09:37,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:37,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611893327] [2022-03-01 17:09:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:37,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:37,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:37,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611893327] [2022-03-01 17:09:37,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611893327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:37,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:37,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:37,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753522086] [2022-03-01 17:09:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:37,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:37,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:37,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:37,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:37,578 INFO L87 Difference]: Start difference. First operand 1136 states and 4367 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:37,656 INFO L93 Difference]: Finished difference Result 2051 states and 7410 transitions. [2022-03-01 17:09:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:37,659 INFO L225 Difference]: With dead ends: 2051 [2022-03-01 17:09:37,660 INFO L226 Difference]: Without dead ends: 1840 [2022-03-01 17:09:37,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:37,660 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 103 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:37,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 122 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:37,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2022-03-01 17:09:37,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1100. [2022-03-01 17:09:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.869881710646042) internal successors, (4253), 1099 states have internal predecessors, (4253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4253 transitions. [2022-03-01 17:09:37,676 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4253 transitions. Word has length 25 [2022-03-01 17:09:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:37,676 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4253 transitions. [2022-03-01 17:09:37,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4253 transitions. [2022-03-01 17:09:37,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:37,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:37,678 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] [2022-03-01 17:09:37,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2022-03-01 17:09:37,678 INFO L402 AbstractCegarLoop]: === Iteration 618 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:37,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:37,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2058580331, now seen corresponding path program 613 times [2022-03-01 17:09:37,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:37,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008732573] [2022-03-01 17:09:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:37,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:37,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:37,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008732573] [2022-03-01 17:09:37,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008732573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:37,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:37,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:37,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956862960] [2022-03-01 17:09:37,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:37,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:37,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:37,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:37,749 INFO L87 Difference]: Start difference. First operand 1100 states and 4253 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:37,823 INFO L93 Difference]: Finished difference Result 2073 states and 7527 transitions. [2022-03-01 17:09:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:37,827 INFO L225 Difference]: With dead ends: 2073 [2022-03-01 17:09:37,827 INFO L226 Difference]: Without dead ends: 1884 [2022-03-01 17:09:37,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:37,828 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 102 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:37,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-03-01 17:09:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1140. [2022-03-01 17:09:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 3.8604038630377526) internal successors, (4397), 1139 states have internal predecessors, (4397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 4397 transitions. [2022-03-01 17:09:37,847 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 4397 transitions. Word has length 25 [2022-03-01 17:09:37,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:37,847 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 4397 transitions. [2022-03-01 17:09:37,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 4397 transitions. [2022-03-01 17:09:37,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:37,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:37,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:37,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2022-03-01 17:09:37,849 INFO L402 AbstractCegarLoop]: === Iteration 619 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:37,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:37,849 INFO L85 PathProgramCache]: Analyzing trace with hash -866113899, now seen corresponding path program 614 times [2022-03-01 17:09:37,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:37,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099306076] [2022-03-01 17:09:37,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:37,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:37,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:37,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099306076] [2022-03-01 17:09:37,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099306076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:37,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:37,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:37,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213373403] [2022-03-01 17:09:37,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:37,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:37,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:37,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:37,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:37,923 INFO L87 Difference]: Start difference. First operand 1140 states and 4397 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:37,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:37,992 INFO L93 Difference]: Finished difference Result 2067 states and 7482 transitions. [2022-03-01 17:09:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:38,007 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:38,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:38,012 INFO L225 Difference]: With dead ends: 2067 [2022-03-01 17:09:38,012 INFO L226 Difference]: Without dead ends: 1856 [2022-03-01 17:09:38,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:38,012 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 102 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:38,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:38,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2022-03-01 17:09:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1112. [2022-03-01 17:09:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.867686768676868) internal successors, (4297), 1111 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4297 transitions. [2022-03-01 17:09:38,030 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4297 transitions. Word has length 25 [2022-03-01 17:09:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:38,030 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4297 transitions. [2022-03-01 17:09:38,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4297 transitions. [2022-03-01 17:09:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:38,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:38,032 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] [2022-03-01 17:09:38,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2022-03-01 17:09:38,032 INFO L402 AbstractCegarLoop]: === Iteration 620 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:38,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:38,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1755484919, now seen corresponding path program 615 times [2022-03-01 17:09:38,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:38,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038891408] [2022-03-01 17:09:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:38,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:38,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:38,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038891408] [2022-03-01 17:09:38,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038891408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:38,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:38,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:38,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228630408] [2022-03-01 17:09:38,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:38,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:38,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:38,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:38,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:38,109 INFO L87 Difference]: Start difference. First operand 1112 states and 4297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:38,190 INFO L93 Difference]: Finished difference Result 2061 states and 7471 transitions. [2022-03-01 17:09:38,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:38,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:38,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:38,194 INFO L225 Difference]: With dead ends: 2061 [2022-03-01 17:09:38,195 INFO L226 Difference]: Without dead ends: 1872 [2022-03-01 17:09:38,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:38,195 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 99 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:38,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 136 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:38,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2022-03-01 17:09:38,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1136. [2022-03-01 17:09:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.852863436123348) internal successors, (4373), 1135 states have internal predecessors, (4373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4373 transitions. [2022-03-01 17:09:38,215 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4373 transitions. Word has length 25 [2022-03-01 17:09:38,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:38,215 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4373 transitions. [2022-03-01 17:09:38,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4373 transitions. [2022-03-01 17:09:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:38,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:38,217 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] [2022-03-01 17:09:38,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619 [2022-03-01 17:09:38,217 INFO L402 AbstractCegarLoop]: === Iteration 621 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:38,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash 829834901, now seen corresponding path program 616 times [2022-03-01 17:09:38,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:38,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743195343] [2022-03-01 17:09:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:38,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:38,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743195343] [2022-03-01 17:09:38,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743195343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:38,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:38,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:38,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9285433] [2022-03-01 17:09:38,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:38,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:38,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:38,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:38,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:38,291 INFO L87 Difference]: Start difference. First operand 1136 states and 4373 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:38,366 INFO L93 Difference]: Finished difference Result 2047 states and 7402 transitions. [2022-03-01 17:09:38,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:38,366 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:38,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:38,370 INFO L225 Difference]: With dead ends: 2047 [2022-03-01 17:09:38,371 INFO L226 Difference]: Without dead ends: 1848 [2022-03-01 17:09:38,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:38,371 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:38,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 118 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2022-03-01 17:09:38,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1112. [2022-03-01 17:09:38,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.8568856885688567) internal successors, (4285), 1111 states have internal predecessors, (4285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4285 transitions. [2022-03-01 17:09:38,390 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4285 transitions. Word has length 25 [2022-03-01 17:09:38,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:38,390 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4285 transitions. [2022-03-01 17:09:38,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4285 transitions. [2022-03-01 17:09:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:38,391 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:38,391 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] [2022-03-01 17:09:38,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620 [2022-03-01 17:09:38,391 INFO L402 AbstractCegarLoop]: === Iteration 622 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:38,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:38,392 INFO L85 PathProgramCache]: Analyzing trace with hash 670486165, now seen corresponding path program 617 times [2022-03-01 17:09:38,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:38,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711474606] [2022-03-01 17:09:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:38,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:38,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:38,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711474606] [2022-03-01 17:09:38,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711474606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:38,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:38,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:38,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288846687] [2022-03-01 17:09:38,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:38,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:38,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:38,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:38,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:38,473 INFO L87 Difference]: Start difference. First operand 1112 states and 4285 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:38,548 INFO L93 Difference]: Finished difference Result 2049 states and 7425 transitions. [2022-03-01 17:09:38,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:38,548 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:38,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:38,553 INFO L225 Difference]: With dead ends: 2049 [2022-03-01 17:09:38,553 INFO L226 Difference]: Without dead ends: 1866 [2022-03-01 17:09:38,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:38,553 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 107 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:38,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 126 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:38,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-03-01 17:09:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1136. [2022-03-01 17:09:38,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8422907488986784) internal successors, (4361), 1135 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4361 transitions. [2022-03-01 17:09:38,594 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4361 transitions. Word has length 25 [2022-03-01 17:09:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:38,595 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4361 transitions. [2022-03-01 17:09:38,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4361 transitions. [2022-03-01 17:09:38,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:38,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:38,596 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] [2022-03-01 17:09:38,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621 [2022-03-01 17:09:38,596 INFO L402 AbstractCegarLoop]: === Iteration 623 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:38,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1751548791, now seen corresponding path program 618 times [2022-03-01 17:09:38,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:38,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469067570] [2022-03-01 17:09:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:38,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:38,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:38,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:38,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469067570] [2022-03-01 17:09:38,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469067570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:38,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:38,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:38,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318699274] [2022-03-01 17:09:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:38,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:38,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:38,708 INFO L87 Difference]: Start difference. First operand 1136 states and 4361 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:38,822 INFO L93 Difference]: Finished difference Result 2041 states and 7373 transitions. [2022-03-01 17:09:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:38,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:38,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:38,826 INFO L225 Difference]: With dead ends: 2041 [2022-03-01 17:09:38,826 INFO L226 Difference]: Without dead ends: 1830 [2022-03-01 17:09:38,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:38,827 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 94 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:38,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 118 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:38,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2022-03-01 17:09:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1100. [2022-03-01 17:09:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 3.86442220200182) internal successors, (4247), 1099 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 4247 transitions. [2022-03-01 17:09:38,844 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 4247 transitions. Word has length 25 [2022-03-01 17:09:38,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:38,844 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 4247 transitions. [2022-03-01 17:09:38,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:38,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 4247 transitions. [2022-03-01 17:09:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:38,846 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:38,846 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] [2022-03-01 17:09:38,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622 [2022-03-01 17:09:38,846 INFO L402 AbstractCegarLoop]: === Iteration 624 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:38,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1086183821, now seen corresponding path program 619 times [2022-03-01 17:09:38,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:38,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693251278] [2022-03-01 17:09:38,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:38,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:38,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:38,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693251278] [2022-03-01 17:09:38,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693251278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:38,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:38,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:38,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113297239] [2022-03-01 17:09:38,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:38,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:38,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:38,954 INFO L87 Difference]: Start difference. First operand 1100 states and 4247 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:39,052 INFO L93 Difference]: Finished difference Result 2067 states and 7506 transitions. [2022-03-01 17:09:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:39,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:39,057 INFO L225 Difference]: With dead ends: 2067 [2022-03-01 17:09:39,057 INFO L226 Difference]: Without dead ends: 1880 [2022-03-01 17:09:39,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:39,057 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 121 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:39,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 108 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-03-01 17:09:39,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1140. [2022-03-01 17:09:39,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 3.85513608428446) internal successors, (4391), 1139 states have internal predecessors, (4391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 4391 transitions. [2022-03-01 17:09:39,076 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 4391 transitions. Word has length 25 [2022-03-01 17:09:39,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:39,076 INFO L470 AbstractCegarLoop]: Abstraction has 1140 states and 4391 transitions. [2022-03-01 17:09:39,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 4391 transitions. [2022-03-01 17:09:39,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:39,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:39,078 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] [2022-03-01 17:09:39,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623 [2022-03-01 17:09:39,078 INFO L402 AbstractCegarLoop]: === Iteration 625 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:39,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:39,078 INFO L85 PathProgramCache]: Analyzing trace with hash -5121195, now seen corresponding path program 620 times [2022-03-01 17:09:39,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:39,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654584006] [2022-03-01 17:09:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:39,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:39,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:39,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654584006] [2022-03-01 17:09:39,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654584006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:39,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:39,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:39,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318145132] [2022-03-01 17:09:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:39,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:39,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:39,179 INFO L87 Difference]: Start difference. First operand 1140 states and 4391 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:39,276 INFO L93 Difference]: Finished difference Result 2063 states and 7466 transitions. [2022-03-01 17:09:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:39,276 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:39,280 INFO L225 Difference]: With dead ends: 2063 [2022-03-01 17:09:39,280 INFO L226 Difference]: Without dead ends: 1852 [2022-03-01 17:09:39,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:39,281 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 89 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:39,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 139 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-03-01 17:09:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1112. [2022-03-01 17:09:39,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.862286228622862) internal successors, (4291), 1111 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4291 transitions. [2022-03-01 17:09:39,304 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4291 transitions. Word has length 25 [2022-03-01 17:09:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:39,304 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4291 transitions. [2022-03-01 17:09:39,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4291 transitions. [2022-03-01 17:09:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:39,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:39,306 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] [2022-03-01 17:09:39,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2022-03-01 17:09:39,306 INFO L402 AbstractCegarLoop]: === Iteration 626 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:39,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:39,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1567085867, now seen corresponding path program 621 times [2022-03-01 17:09:39,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:39,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770581501] [2022-03-01 17:09:39,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:39,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:39,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:39,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770581501] [2022-03-01 17:09:39,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770581501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:39,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:39,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:39,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779231612] [2022-03-01 17:09:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:39,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:39,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:39,385 INFO L87 Difference]: Start difference. First operand 1112 states and 4291 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:39,475 INFO L93 Difference]: Finished difference Result 2055 states and 7450 transitions. [2022-03-01 17:09:39,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:39,476 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:39,479 INFO L225 Difference]: With dead ends: 2055 [2022-03-01 17:09:39,479 INFO L226 Difference]: Without dead ends: 1868 [2022-03-01 17:09:39,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:39,480 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 120 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:39,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 109 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2022-03-01 17:09:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1136. [2022-03-01 17:09:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8475770925110133) internal successors, (4367), 1135 states have internal predecessors, (4367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4367 transitions. [2022-03-01 17:09:39,503 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4367 transitions. Word has length 25 [2022-03-01 17:09:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:39,503 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4367 transitions. [2022-03-01 17:09:39,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4367 transitions. [2022-03-01 17:09:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:39,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:39,505 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] [2022-03-01 17:09:39,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625 [2022-03-01 17:09:39,505 INFO L402 AbstractCegarLoop]: === Iteration 627 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:39,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:39,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1039635157, now seen corresponding path program 622 times [2022-03-01 17:09:39,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:39,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181855860] [2022-03-01 17:09:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:39,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:39,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:39,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181855860] [2022-03-01 17:09:39,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181855860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:39,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:39,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:39,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352884651] [2022-03-01 17:09:39,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:39,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:39,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:39,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:39,614 INFO L87 Difference]: Start difference. First operand 1136 states and 4367 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:39,690 INFO L93 Difference]: Finished difference Result 2043 states and 7386 transitions. [2022-03-01 17:09:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:39,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:39,694 INFO L225 Difference]: With dead ends: 2043 [2022-03-01 17:09:39,694 INFO L226 Difference]: Without dead ends: 1844 [2022-03-01 17:09:39,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:39,694 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:39,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 111 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:39,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-03-01 17:09:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1112. [2022-03-01 17:09:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1111 states have (on average 3.8514851485148514) internal successors, (4279), 1111 states have internal predecessors, (4279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 4279 transitions. [2022-03-01 17:09:39,713 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 4279 transitions. Word has length 25 [2022-03-01 17:09:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:39,713 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 4279 transitions. [2022-03-01 17:09:39,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 4279 transitions. [2022-03-01 17:09:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:39,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:39,715 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] [2022-03-01 17:09:39,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626 [2022-03-01 17:09:39,715 INFO L402 AbstractCegarLoop]: === Iteration 628 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:39,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:39,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1179080905, now seen corresponding path program 623 times [2022-03-01 17:09:39,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:39,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68743890] [2022-03-01 17:09:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:39,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:39,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:39,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68743890] [2022-03-01 17:09:39,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68743890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:39,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:39,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:39,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089888357] [2022-03-01 17:09:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:39,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:39,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:39,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:39,798 INFO L87 Difference]: Start difference. First operand 1112 states and 4279 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:39,871 INFO L93 Difference]: Finished difference Result 2047 states and 7414 transitions. [2022-03-01 17:09:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:39,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:39,876 INFO L225 Difference]: With dead ends: 2047 [2022-03-01 17:09:39,876 INFO L226 Difference]: Without dead ends: 1864 [2022-03-01 17:09:39,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:39,876 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 111 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:39,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 117 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:39,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-01 17:09:39,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1136. [2022-03-01 17:09:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 3.8370044052863435) internal successors, (4355), 1135 states have internal predecessors, (4355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 4355 transitions. [2022-03-01 17:09:39,895 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 4355 transitions. Word has length 25 [2022-03-01 17:09:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:39,895 INFO L470 AbstractCegarLoop]: Abstraction has 1136 states and 4355 transitions. [2022-03-01 17:09:39,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 4355 transitions. [2022-03-01 17:09:39,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:39,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:39,897 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] [2022-03-01 17:09:39,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627 [2022-03-01 17:09:39,897 INFO L402 AbstractCegarLoop]: === Iteration 629 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:39,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:39,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2025877867, now seen corresponding path program 624 times [2022-03-01 17:09:39,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:39,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857368595] [2022-03-01 17:09:39,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:39,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:40,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:40,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857368595] [2022-03-01 17:09:40,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857368595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:40,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:40,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:40,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54668477] [2022-03-01 17:09:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:40,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:40,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:40,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:40,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:40,021 INFO L87 Difference]: Start difference. First operand 1136 states and 4355 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:40,128 INFO L93 Difference]: Finished difference Result 2039 states and 7362 transitions. [2022-03-01 17:09:40,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:40,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:40,132 INFO L225 Difference]: With dead ends: 2039 [2022-03-01 17:09:40,132 INFO L226 Difference]: Without dead ends: 1822 [2022-03-01 17:09:40,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:40,132 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 100 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:40,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 111 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:40,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-03-01 17:09:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1094. [2022-03-01 17:09:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.8709972552607503) internal successors, (4231), 1093 states have internal predecessors, (4231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4231 transitions. [2022-03-01 17:09:40,149 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4231 transitions. Word has length 25 [2022-03-01 17:09:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:40,149 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4231 transitions. [2022-03-01 17:09:40,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4231 transitions. [2022-03-01 17:09:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:40,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:40,151 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] [2022-03-01 17:09:40,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628 [2022-03-01 17:09:40,151 INFO L402 AbstractCegarLoop]: === Iteration 630 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:40,151 INFO L85 PathProgramCache]: Analyzing trace with hash -472200137, now seen corresponding path program 625 times [2022-03-01 17:09:40,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:40,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716946062] [2022-03-01 17:09:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:40,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:40,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716946062] [2022-03-01 17:09:40,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716946062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:40,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:40,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:40,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551205361] [2022-03-01 17:09:40,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:40,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:40,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:40,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:40,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:40,235 INFO L87 Difference]: Start difference. First operand 1094 states and 4231 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:40,311 INFO L93 Difference]: Finished difference Result 2083 states and 7547 transitions. [2022-03-01 17:09:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:40,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:40,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:40,315 INFO L225 Difference]: With dead ends: 2083 [2022-03-01 17:09:40,315 INFO L226 Difference]: Without dead ends: 1894 [2022-03-01 17:09:40,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:40,315 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 115 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:40,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 117 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:40,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2022-03-01 17:09:40,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1124. [2022-03-01 17:09:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 3.85040071237756) internal successors, (4324), 1123 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 4324 transitions. [2022-03-01 17:09:40,332 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 4324 transitions. Word has length 25 [2022-03-01 17:09:40,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:40,332 INFO L470 AbstractCegarLoop]: Abstraction has 1124 states and 4324 transitions. [2022-03-01 17:09:40,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 4324 transitions. [2022-03-01 17:09:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:40,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:40,334 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] [2022-03-01 17:09:40,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629 [2022-03-01 17:09:40,334 INFO L402 AbstractCegarLoop]: === Iteration 631 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:40,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:40,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1779430165, now seen corresponding path program 626 times [2022-03-01 17:09:40,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:40,334 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599308382] [2022-03-01 17:09:40,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:40,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:40,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:40,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599308382] [2022-03-01 17:09:40,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599308382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:40,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:40,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:40,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336113652] [2022-03-01 17:09:40,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:40,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:40,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:40,412 INFO L87 Difference]: Start difference. First operand 1124 states and 4324 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:40,503 INFO L93 Difference]: Finished difference Result 2081 states and 7512 transitions. [2022-03-01 17:09:40,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:40,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:40,507 INFO L225 Difference]: With dead ends: 2081 [2022-03-01 17:09:40,507 INFO L226 Difference]: Without dead ends: 1864 [2022-03-01 17:09:40,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:40,507 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:40,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 123 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:40,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-01 17:09:40,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1094. [2022-03-01 17:09:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.858188472095151) internal successors, (4217), 1093 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4217 transitions. [2022-03-01 17:09:40,524 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4217 transitions. Word has length 25 [2022-03-01 17:09:40,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:40,524 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4217 transitions. [2022-03-01 17:09:40,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4217 transitions. [2022-03-01 17:09:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:40,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:40,526 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] [2022-03-01 17:09:40,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630 [2022-03-01 17:09:40,526 INFO L402 AbstractCegarLoop]: === Iteration 632 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:40,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:40,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1318997099, now seen corresponding path program 627 times [2022-03-01 17:09:40,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:40,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895935368] [2022-03-01 17:09:40,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:40,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:40,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:40,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895935368] [2022-03-01 17:09:40,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895935368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:40,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:40,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:40,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864460315] [2022-03-01 17:09:40,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:40,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:40,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:40,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:40,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:40,599 INFO L87 Difference]: Start difference. First operand 1094 states and 4217 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:40,672 INFO L93 Difference]: Finished difference Result 2077 states and 7514 transitions. [2022-03-01 17:09:40,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:40,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:40,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:40,676 INFO L225 Difference]: With dead ends: 2077 [2022-03-01 17:09:40,676 INFO L226 Difference]: Without dead ends: 1888 [2022-03-01 17:09:40,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:40,676 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:40,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 109 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:40,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2022-03-01 17:09:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1122. [2022-03-01 17:09:40,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.840321141837645) internal successors, (4305), 1121 states have internal predecessors, (4305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4305 transitions. [2022-03-01 17:09:40,694 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4305 transitions. Word has length 25 [2022-03-01 17:09:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:40,694 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4305 transitions. [2022-03-01 17:09:40,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4305 transitions. [2022-03-01 17:09:40,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:40,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:40,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:40,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2022-03-01 17:09:40,696 INFO L402 AbstractCegarLoop]: === Iteration 633 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:40,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:40,697 INFO L85 PathProgramCache]: Analyzing trace with hash -126530667, now seen corresponding path program 628 times [2022-03-01 17:09:40,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:40,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939947370] [2022-03-01 17:09:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:40,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:40,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:40,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:40,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939947370] [2022-03-01 17:09:40,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939947370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:40,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:40,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:40,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076259646] [2022-03-01 17:09:40,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:40,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:40,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:40,804 INFO L87 Difference]: Start difference. First operand 1122 states and 4305 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:40,917 INFO L93 Difference]: Finished difference Result 2071 states and 7469 transitions. [2022-03-01 17:09:40,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:40,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:40,921 INFO L225 Difference]: With dead ends: 2071 [2022-03-01 17:09:40,921 INFO L226 Difference]: Without dead ends: 1860 [2022-03-01 17:09:40,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:40,921 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 102 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:40,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 127 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2022-03-01 17:09:40,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1094. [2022-03-01 17:09:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1093 states have (on average 3.8453796889295515) internal successors, (4203), 1093 states have internal predecessors, (4203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 4203 transitions. [2022-03-01 17:09:40,938 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 4203 transitions. Word has length 25 [2022-03-01 17:09:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:40,939 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 4203 transitions. [2022-03-01 17:09:40,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 4203 transitions. [2022-03-01 17:09:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:40,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:40,940 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] [2022-03-01 17:09:40,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2022-03-01 17:09:40,940 INFO L402 AbstractCegarLoop]: === Iteration 634 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -336649485, now seen corresponding path program 629 times [2022-03-01 17:09:40,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:40,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980675299] [2022-03-01 17:09:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:40,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:41,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:41,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980675299] [2022-03-01 17:09:41,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980675299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:41,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:41,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:41,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493429039] [2022-03-01 17:09:41,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:41,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:41,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:41,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:41,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:41,057 INFO L87 Difference]: Start difference. First operand 1094 states and 4203 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:41,155 INFO L93 Difference]: Finished difference Result 2073 states and 7490 transitions. [2022-03-01 17:09:41,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:41,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:41,159 INFO L225 Difference]: With dead ends: 2073 [2022-03-01 17:09:41,159 INFO L226 Difference]: Without dead ends: 1886 [2022-03-01 17:09:41,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:41,160 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 116 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:41,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 109 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:41,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2022-03-01 17:09:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1122. [2022-03-01 17:09:41,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1121 states have (on average 3.8278322925958963) internal successors, (4291), 1121 states have internal predecessors, (4291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 4291 transitions. [2022-03-01 17:09:41,177 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 4291 transitions. Word has length 25 [2022-03-01 17:09:41,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:41,177 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 4291 transitions. [2022-03-01 17:09:41,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 4291 transitions. [2022-03-01 17:09:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:41,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:41,179 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] [2022-03-01 17:09:41,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633 [2022-03-01 17:09:41,179 INFO L402 AbstractCegarLoop]: === Iteration 635 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 744413141, now seen corresponding path program 630 times [2022-03-01 17:09:41,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:41,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661809030] [2022-03-01 17:09:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:41,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:41,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:41,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661809030] [2022-03-01 17:09:41,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661809030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:41,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:41,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:41,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693673315] [2022-03-01 17:09:41,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:41,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:41,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:41,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:41,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:41,294 INFO L87 Difference]: Start difference. First operand 1122 states and 4291 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:41,398 INFO L93 Difference]: Finished difference Result 2069 states and 7450 transitions. [2022-03-01 17:09:41,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:41,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:41,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:41,403 INFO L225 Difference]: With dead ends: 2069 [2022-03-01 17:09:41,403 INFO L226 Difference]: Without dead ends: 1844 [2022-03-01 17:09:41,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:41,403 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 114 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:41,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 109 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-03-01 17:09:41,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1080. [2022-03-01 17:09:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 3.854494902687674) internal successors, (4159), 1079 states have internal predecessors, (4159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4159 transitions. [2022-03-01 17:09:41,422 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4159 transitions. Word has length 25 [2022-03-01 17:09:41,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:41,422 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4159 transitions. [2022-03-01 17:09:41,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4159 transitions. [2022-03-01 17:09:41,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:41,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:41,424 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] [2022-03-01 17:09:41,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634 [2022-03-01 17:09:41,424 INFO L402 AbstractCegarLoop]: === Iteration 636 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:41,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:41,424 INFO L85 PathProgramCache]: Analyzing trace with hash 960758839, now seen corresponding path program 631 times [2022-03-01 17:09:41,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:41,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99867675] [2022-03-01 17:09:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:41,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:41,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:41,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:41,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99867675] [2022-03-01 17:09:41,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99867675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:41,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:41,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:41,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345815718] [2022-03-01 17:09:41,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:41,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:41,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:41,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:41,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:41,547 INFO L87 Difference]: Start difference. First operand 1080 states and 4159 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:41,663 INFO L93 Difference]: Finished difference Result 2170 states and 7829 transitions. [2022-03-01 17:09:41,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:41,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:41,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:41,668 INFO L225 Difference]: With dead ends: 2170 [2022-03-01 17:09:41,668 INFO L226 Difference]: Without dead ends: 1981 [2022-03-01 17:09:41,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:41,668 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 102 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:41,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 117 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2022-03-01 17:09:41,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1149. [2022-03-01 17:09:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 3.837108013937282) internal successors, (4405), 1148 states have internal predecessors, (4405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 4405 transitions. [2022-03-01 17:09:41,687 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 4405 transitions. Word has length 25 [2022-03-01 17:09:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:41,687 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 4405 transitions. [2022-03-01 17:09:41,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 4405 transitions. [2022-03-01 17:09:41,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:41,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:41,690 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] [2022-03-01 17:09:41,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635 [2022-03-01 17:09:41,690 INFO L402 AbstractCegarLoop]: === Iteration 637 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:41,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:41,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1082578155, now seen corresponding path program 632 times [2022-03-01 17:09:41,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:41,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127976454] [2022-03-01 17:09:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:41,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:41,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:41,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127976454] [2022-03-01 17:09:41,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127976454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:41,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:41,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:41,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017870407] [2022-03-01 17:09:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:41,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:41,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:41,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:41,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:41,776 INFO L87 Difference]: Start difference. First operand 1149 states and 4405 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:41,874 INFO L93 Difference]: Finished difference Result 2168 states and 7794 transitions. [2022-03-01 17:09:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:41,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:41,878 INFO L225 Difference]: With dead ends: 2168 [2022-03-01 17:09:41,878 INFO L226 Difference]: Without dead ends: 1951 [2022-03-01 17:09:41,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:41,879 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:41,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 110 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:41,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-03-01 17:09:41,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1119. [2022-03-01 17:09:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 3.8434704830053668) internal successors, (4297), 1118 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4297 transitions. [2022-03-01 17:09:41,897 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4297 transitions. Word has length 25 [2022-03-01 17:09:41,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:41,897 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 4297 transitions. [2022-03-01 17:09:41,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:41,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4297 transitions. [2022-03-01 17:09:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:41,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:41,898 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] [2022-03-01 17:09:41,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636 [2022-03-01 17:09:41,899 INFO L402 AbstractCegarLoop]: === Iteration 638 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:41,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:41,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1386499127, now seen corresponding path program 633 times [2022-03-01 17:09:41,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:41,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41054483] [2022-03-01 17:09:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:41,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:41,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:41,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41054483] [2022-03-01 17:09:41,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41054483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:41,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:41,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:41,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342151317] [2022-03-01 17:09:41,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:41,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:41,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:42,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:42,000 INFO L87 Difference]: Start difference. First operand 1119 states and 4297 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:42,083 INFO L93 Difference]: Finished difference Result 2176 states and 7827 transitions. [2022-03-01 17:09:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:42,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:42,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:42,088 INFO L225 Difference]: With dead ends: 2176 [2022-03-01 17:09:42,088 INFO L226 Difference]: Without dead ends: 1987 [2022-03-01 17:09:42,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:42,088 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 106 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:42,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 111 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-03-01 17:09:42,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1182. [2022-03-01 17:09:42,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1181 states have (on average 3.8137171888230315) internal successors, (4504), 1181 states have internal predecessors, (4504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 4504 transitions. [2022-03-01 17:09:42,107 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 4504 transitions. Word has length 25 [2022-03-01 17:09:42,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:42,107 INFO L470 AbstractCegarLoop]: Abstraction has 1182 states and 4504 transitions. [2022-03-01 17:09:42,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 4504 transitions. [2022-03-01 17:09:42,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:42,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:42,109 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] [2022-03-01 17:09:42,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637 [2022-03-01 17:09:42,109 INFO L402 AbstractCegarLoop]: === Iteration 639 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:42,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:42,109 INFO L85 PathProgramCache]: Analyzing trace with hash 830710839, now seen corresponding path program 634 times [2022-03-01 17:09:42,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:42,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391727123] [2022-03-01 17:09:42,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:42,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:42,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:42,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391727123] [2022-03-01 17:09:42,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391727123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:42,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:42,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:42,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081282562] [2022-03-01 17:09:42,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:42,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:42,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:42,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:42,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:42,199 INFO L87 Difference]: Start difference. First operand 1182 states and 4504 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:42,275 INFO L93 Difference]: Finished difference Result 2081 states and 7525 transitions. [2022-03-01 17:09:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:42,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:42,279 INFO L225 Difference]: With dead ends: 2081 [2022-03-01 17:09:42,280 INFO L226 Difference]: Without dead ends: 1796 [2022-03-01 17:09:42,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:42,280 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 107 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:42,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 111 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2022-03-01 17:09:42,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1119. [2022-03-01 17:09:42,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 3.815742397137746) internal successors, (4266), 1118 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 4266 transitions. [2022-03-01 17:09:42,316 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 4266 transitions. Word has length 25 [2022-03-01 17:09:42,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:42,316 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 4266 transitions. [2022-03-01 17:09:42,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 4266 transitions. [2022-03-01 17:09:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:42,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:42,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:42,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2022-03-01 17:09:42,318 INFO L402 AbstractCegarLoop]: === Iteration 640 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:42,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1926120555, now seen corresponding path program 635 times [2022-03-01 17:09:42,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:42,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978963896] [2022-03-01 17:09:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:42,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:42,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:42,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:42,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978963896] [2022-03-01 17:09:42,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978963896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:42,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:42,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:42,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847690731] [2022-03-01 17:09:42,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:42,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:42,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:42,430 INFO L87 Difference]: Start difference. First operand 1119 states and 4266 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:42,541 INFO L93 Difference]: Finished difference Result 2157 states and 7740 transitions. [2022-03-01 17:09:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:42,541 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:42,546 INFO L225 Difference]: With dead ends: 2157 [2022-03-01 17:09:42,546 INFO L226 Difference]: Without dead ends: 1970 [2022-03-01 17:09:42,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:42,546 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:42,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 124 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:42,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-03-01 17:09:42,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1165. [2022-03-01 17:09:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 1164 states have (on average 3.799828178694158) internal successors, (4423), 1164 states have internal predecessors, (4423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 4423 transitions. [2022-03-01 17:09:42,566 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 4423 transitions. Word has length 25 [2022-03-01 17:09:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:42,567 INFO L470 AbstractCegarLoop]: Abstraction has 1165 states and 4423 transitions. [2022-03-01 17:09:42,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 4423 transitions. [2022-03-01 17:09:42,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:42,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:42,570 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] [2022-03-01 17:09:42,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639 [2022-03-01 17:09:42,570 INFO L402 AbstractCegarLoop]: === Iteration 641 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:42,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash 11457143, now seen corresponding path program 636 times [2022-03-01 17:09:42,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:42,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011939374] [2022-03-01 17:09:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:42,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:42,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:42,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011939374] [2022-03-01 17:09:42,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011939374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:42,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:42,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:42,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303638781] [2022-03-01 17:09:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:42,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:42,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:42,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:42,656 INFO L87 Difference]: Start difference. First operand 1165 states and 4423 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:42,730 INFO L93 Difference]: Finished difference Result 2064 states and 7444 transitions. [2022-03-01 17:09:42,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:42,730 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:42,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:42,735 INFO L225 Difference]: With dead ends: 2064 [2022-03-01 17:09:42,735 INFO L226 Difference]: Without dead ends: 1757 [2022-03-01 17:09:42,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:42,735 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:42,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 110 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:42,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-03-01 17:09:42,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1080. [2022-03-01 17:09:42,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 3.836886005560704) internal successors, (4140), 1079 states have internal predecessors, (4140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4140 transitions. [2022-03-01 17:09:42,753 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4140 transitions. Word has length 25 [2022-03-01 17:09:42,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:42,754 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4140 transitions. [2022-03-01 17:09:42,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4140 transitions. [2022-03-01 17:09:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:42,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:42,755 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] [2022-03-01 17:09:42,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640 [2022-03-01 17:09:42,755 INFO L402 AbstractCegarLoop]: === Iteration 642 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:42,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:42,758 INFO L85 PathProgramCache]: Analyzing trace with hash 104010773, now seen corresponding path program 637 times [2022-03-01 17:09:42,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:42,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468625120] [2022-03-01 17:09:42,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:42,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:42,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:42,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468625120] [2022-03-01 17:09:42,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468625120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:42,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:42,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:42,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752684712] [2022-03-01 17:09:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:42,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:42,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:42,837 INFO L87 Difference]: Start difference. First operand 1080 states and 4140 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:42,920 INFO L93 Difference]: Finished difference Result 2149 states and 7748 transitions. [2022-03-01 17:09:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:42,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:42,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:42,924 INFO L225 Difference]: With dead ends: 2149 [2022-03-01 17:09:42,924 INFO L226 Difference]: Without dead ends: 1960 [2022-03-01 17:09:42,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:42,925 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:42,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 119 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2022-03-01 17:09:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1138. [2022-03-01 17:09:42,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 3.832014072119613) internal successors, (4357), 1137 states have internal predecessors, (4357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 4357 transitions. [2022-03-01 17:09:42,944 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 4357 transitions. Word has length 25 [2022-03-01 17:09:42,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:42,945 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 4357 transitions. [2022-03-01 17:09:42,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:42,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 4357 transitions. [2022-03-01 17:09:42,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:42,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:42,946 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] [2022-03-01 17:09:42,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641 [2022-03-01 17:09:42,946 INFO L402 AbstractCegarLoop]: === Iteration 643 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:42,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:42,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1296477205, now seen corresponding path program 638 times [2022-03-01 17:09:42,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:42,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197347716] [2022-03-01 17:09:42,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:42,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:43,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:43,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:43,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197347716] [2022-03-01 17:09:43,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197347716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:43,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:43,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:43,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139254789] [2022-03-01 17:09:43,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:43,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:43,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:43,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:43,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:43,028 INFO L87 Difference]: Start difference. First operand 1138 states and 4357 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:43,115 INFO L93 Difference]: Finished difference Result 2143 states and 7703 transitions. [2022-03-01 17:09:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:43,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:43,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:43,119 INFO L225 Difference]: With dead ends: 2143 [2022-03-01 17:09:43,119 INFO L226 Difference]: Without dead ends: 1932 [2022-03-01 17:09:43,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:43,119 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 99 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:43,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 125 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2022-03-01 17:09:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1110. [2022-03-01 17:09:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 3.836789900811542) internal successors, (4255), 1109 states have internal predecessors, (4255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 4255 transitions. [2022-03-01 17:09:43,137 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 4255 transitions. Word has length 25 [2022-03-01 17:09:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:43,137 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 4255 transitions. [2022-03-01 17:09:43,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 4255 transitions. [2022-03-01 17:09:43,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:43,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:43,138 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] [2022-03-01 17:09:43,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642 [2022-03-01 17:09:43,138 INFO L402 AbstractCegarLoop]: === Iteration 644 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:43,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:43,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1206570249, now seen corresponding path program 639 times [2022-03-01 17:09:43,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:43,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449248513] [2022-03-01 17:09:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:43,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:43,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:43,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449248513] [2022-03-01 17:09:43,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449248513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:43,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:43,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:43,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005456953] [2022-03-01 17:09:43,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:43,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:43,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:43,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:43,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:43,219 INFO L87 Difference]: Start difference. First operand 1110 states and 4255 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:43,297 INFO L93 Difference]: Finished difference Result 2161 states and 7766 transitions. [2022-03-01 17:09:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:43,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:43,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:43,301 INFO L225 Difference]: With dead ends: 2161 [2022-03-01 17:09:43,301 INFO L226 Difference]: Without dead ends: 1972 [2022-03-01 17:09:43,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:43,301 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 105 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:43,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 110 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-03-01 17:09:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1173. [2022-03-01 17:09:43,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1172 states have (on average 3.8071672354948807) internal successors, (4462), 1172 states have internal predecessors, (4462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 4462 transitions. [2022-03-01 17:09:43,321 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 4462 transitions. Word has length 25 [2022-03-01 17:09:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:43,321 INFO L470 AbstractCegarLoop]: Abstraction has 1173 states and 4462 transitions. [2022-03-01 17:09:43,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 4462 transitions. [2022-03-01 17:09:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:43,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:43,322 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] [2022-03-01 17:09:43,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643 [2022-03-01 17:09:43,323 INFO L402 AbstractCegarLoop]: === Iteration 645 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:43,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:43,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1192350699, now seen corresponding path program 640 times [2022-03-01 17:09:43,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:43,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548721150] [2022-03-01 17:09:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:43,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:43,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:43,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548721150] [2022-03-01 17:09:43,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548721150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:43,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:43,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:43,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300189728] [2022-03-01 17:09:43,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:43,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:43,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:43,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:43,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:43,401 INFO L87 Difference]: Start difference. First operand 1173 states and 4462 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:43,475 INFO L93 Difference]: Finished difference Result 2066 states and 7464 transitions. [2022-03-01 17:09:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:43,475 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:43,478 INFO L225 Difference]: With dead ends: 2066 [2022-03-01 17:09:43,478 INFO L226 Difference]: Without dead ends: 1781 [2022-03-01 17:09:43,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:43,479 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 109 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:43,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 116 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:43,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-03-01 17:09:43,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1110. [2022-03-01 17:09:43,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1109 states have (on average 3.8097385031559963) internal successors, (4225), 1109 states have internal predecessors, (4225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 4225 transitions. [2022-03-01 17:09:43,496 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 4225 transitions. Word has length 25 [2022-03-01 17:09:43,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:43,496 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 4225 transitions. [2022-03-01 17:09:43,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 4225 transitions. [2022-03-01 17:09:43,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:43,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:43,497 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] [2022-03-01 17:09:43,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2022-03-01 17:09:43,498 INFO L402 AbstractCegarLoop]: === Iteration 646 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:43,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash -240122859, now seen corresponding path program 641 times [2022-03-01 17:09:43,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:43,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367456219] [2022-03-01 17:09:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:43,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:43,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:43,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:43,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367456219] [2022-03-01 17:09:43,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367456219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:43,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:43,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:43,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349011940] [2022-03-01 17:09:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:43,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:43,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:43,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:43,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:43,585 INFO L87 Difference]: Start difference. First operand 1110 states and 4225 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:43,668 INFO L93 Difference]: Finished difference Result 2136 states and 7661 transitions. [2022-03-01 17:09:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:43,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:43,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:43,672 INFO L225 Difference]: With dead ends: 2136 [2022-03-01 17:09:43,672 INFO L226 Difference]: Without dead ends: 1953 [2022-03-01 17:09:43,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:43,672 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 101 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:43,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 115 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:43,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2022-03-01 17:09:43,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1154. [2022-03-01 17:09:43,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 3.7961838681699915) internal successors, (4377), 1153 states have internal predecessors, (4377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 4377 transitions. [2022-03-01 17:09:43,690 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 4377 transitions. Word has length 25 [2022-03-01 17:09:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:43,690 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 4377 transitions. [2022-03-01 17:09:43,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 4377 transitions. [2022-03-01 17:09:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:43,692 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:43,692 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] [2022-03-01 17:09:43,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645 [2022-03-01 17:09:43,692 INFO L402 AbstractCegarLoop]: === Iteration 647 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:43,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1309641865, now seen corresponding path program 642 times [2022-03-01 17:09:43,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:43,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119076789] [2022-03-01 17:09:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:43,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:43,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:43,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:43,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119076789] [2022-03-01 17:09:43,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119076789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:43,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:43,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:43,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278732051] [2022-03-01 17:09:43,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:43,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:43,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:43,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:43,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:43,776 INFO L87 Difference]: Start difference. First operand 1154 states and 4377 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:43,849 INFO L93 Difference]: Finished difference Result 2047 states and 7379 transitions. [2022-03-01 17:09:43,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:43,849 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:43,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:43,853 INFO L225 Difference]: With dead ends: 2047 [2022-03-01 17:09:43,853 INFO L226 Difference]: Without dead ends: 1751 [2022-03-01 17:09:43,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:43,853 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 107 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:43,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 114 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:43,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-03-01 17:09:43,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1080. [2022-03-01 17:09:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1079 states have (on average 3.822984244670992) internal successors, (4125), 1079 states have internal predecessors, (4125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 4125 transitions. [2022-03-01 17:09:43,870 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 4125 transitions. Word has length 25 [2022-03-01 17:09:43,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:43,870 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 4125 transitions. [2022-03-01 17:09:43,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 4125 transitions. [2022-03-01 17:09:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:43,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:43,871 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] [2022-03-01 17:09:43,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646 [2022-03-01 17:09:43,872 INFO L402 AbstractCegarLoop]: === Iteration 648 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:43,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:43,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1076407283, now seen corresponding path program 643 times [2022-03-01 17:09:43,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:43,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352434159] [2022-03-01 17:09:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:43,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:43,956 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:43,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352434159] [2022-03-01 17:09:43,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352434159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:43,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:43,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:43,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774863011] [2022-03-01 17:09:43,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:43,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:43,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:43,957 INFO L87 Difference]: Start difference. First operand 1080 states and 4125 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:44,040 INFO L93 Difference]: Finished difference Result 2118 states and 7639 transitions. [2022-03-01 17:09:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:44,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:44,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:44,044 INFO L225 Difference]: With dead ends: 2118 [2022-03-01 17:09:44,044 INFO L226 Difference]: Without dead ends: 1931 [2022-03-01 17:09:44,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:44,044 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:44,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 142 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:44,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2022-03-01 17:09:44,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1130. [2022-03-01 17:09:44,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 1129 states have (on average 3.821080602302923) internal successors, (4314), 1129 states have internal predecessors, (4314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 4314 transitions. [2022-03-01 17:09:44,062 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 4314 transitions. Word has length 25 [2022-03-01 17:09:44,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:44,062 INFO L470 AbstractCegarLoop]: Abstraction has 1130 states and 4314 transitions. [2022-03-01 17:09:44,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 4314 transitions. [2022-03-01 17:09:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:44,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:44,063 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] [2022-03-01 17:09:44,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647 [2022-03-01 17:09:44,064 INFO L402 AbstractCegarLoop]: === Iteration 649 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:44,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:44,064 INFO L85 PathProgramCache]: Analyzing trace with hash -2137497387, now seen corresponding path program 644 times [2022-03-01 17:09:44,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:44,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785642660] [2022-03-01 17:09:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:44,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:44,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:44,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785642660] [2022-03-01 17:09:44,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785642660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:44,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:44,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:44,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909076559] [2022-03-01 17:09:44,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:44,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:44,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:44,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:44,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:44,144 INFO L87 Difference]: Start difference. First operand 1130 states and 4314 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:44,245 INFO L93 Difference]: Finished difference Result 2114 states and 7599 transitions. [2022-03-01 17:09:44,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:44,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:44,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:44,248 INFO L225 Difference]: With dead ends: 2114 [2022-03-01 17:09:44,248 INFO L226 Difference]: Without dead ends: 1903 [2022-03-01 17:09:44,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:44,249 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 99 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:44,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 124 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2022-03-01 17:09:44,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1102. [2022-03-01 17:09:44,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 3.8256130790190737) internal successors, (4212), 1101 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4212 transitions. [2022-03-01 17:09:44,266 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4212 transitions. Word has length 25 [2022-03-01 17:09:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:44,266 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4212 transitions. [2022-03-01 17:09:44,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4212 transitions. [2022-03-01 17:09:44,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:44,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:44,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:44,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2022-03-01 17:09:44,268 INFO L402 AbstractCegarLoop]: === Iteration 650 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash -234173739, now seen corresponding path program 645 times [2022-03-01 17:09:44,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:44,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720030124] [2022-03-01 17:09:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:44,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:44,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:44,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720030124] [2022-03-01 17:09:44,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720030124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:44,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:44,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:44,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40716190] [2022-03-01 17:09:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:44,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:44,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:44,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:44,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:44,347 INFO L87 Difference]: Start difference. First operand 1102 states and 4212 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:44,425 INFO L93 Difference]: Finished difference Result 2115 states and 7611 transitions. [2022-03-01 17:09:44,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:44,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:44,429 INFO L225 Difference]: With dead ends: 2115 [2022-03-01 17:09:44,429 INFO L226 Difference]: Without dead ends: 1928 [2022-03-01 17:09:44,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:44,429 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 104 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:44,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 111 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-03-01 17:09:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1148. [2022-03-01 17:09:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 1147 states have (on average 3.809067131647777) internal successors, (4369), 1147 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 4369 transitions. [2022-03-01 17:09:44,447 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 4369 transitions. Word has length 25 [2022-03-01 17:09:44,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:44,447 INFO L470 AbstractCegarLoop]: Abstraction has 1148 states and 4369 transitions. [2022-03-01 17:09:44,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 4369 transitions. [2022-03-01 17:09:44,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:44,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:44,449 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] [2022-03-01 17:09:44,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2022-03-01 17:09:44,449 INFO L402 AbstractCegarLoop]: === Iteration 651 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:44,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:44,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2021555499, now seen corresponding path program 646 times [2022-03-01 17:09:44,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:44,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254470298] [2022-03-01 17:09:44,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:44,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:44,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:44,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:44,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:44,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254470298] [2022-03-01 17:09:44,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254470298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:44,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:44,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:44,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451961136] [2022-03-01 17:09:44,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:44,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:44,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:44,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:44,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:44,547 INFO L87 Difference]: Start difference. First operand 1148 states and 4369 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:44,614 INFO L93 Difference]: Finished difference Result 2022 states and 7315 transitions. [2022-03-01 17:09:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:44,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:44,618 INFO L225 Difference]: With dead ends: 2022 [2022-03-01 17:09:44,618 INFO L226 Difference]: Without dead ends: 1754 [2022-03-01 17:09:44,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:44,618 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 114 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:44,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 111 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-03-01 17:09:44,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1102. [2022-03-01 17:09:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 3.8056312443233424) internal successors, (4190), 1101 states have internal predecessors, (4190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 4190 transitions. [2022-03-01 17:09:44,635 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 4190 transitions. Word has length 25 [2022-03-01 17:09:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:44,635 INFO L470 AbstractCegarLoop]: Abstraction has 1102 states and 4190 transitions. [2022-03-01 17:09:44,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 4190 transitions. [2022-03-01 17:09:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:44,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:44,637 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] [2022-03-01 17:09:44,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650 [2022-03-01 17:09:44,637 INFO L402 AbstractCegarLoop]: === Iteration 652 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:44,637 INFO L85 PathProgramCache]: Analyzing trace with hash 153831223, now seen corresponding path program 647 times [2022-03-01 17:09:44,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:44,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565951370] [2022-03-01 17:09:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:44,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:44,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:44,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565951370] [2022-03-01 17:09:44,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565951370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:44,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:44,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:44,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229690131] [2022-03-01 17:09:44,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:44,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:44,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:44,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:44,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:44,715 INFO L87 Difference]: Start difference. First operand 1102 states and 4190 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:44,807 INFO L93 Difference]: Finished difference Result 2109 states and 7570 transitions. [2022-03-01 17:09:44,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:44,807 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:44,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:44,811 INFO L225 Difference]: With dead ends: 2109 [2022-03-01 17:09:44,811 INFO L226 Difference]: Without dead ends: 1926 [2022-03-01 17:09:44,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:44,811 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:44,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 133 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1926 states. [2022-03-01 17:09:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1926 to 1146. [2022-03-01 17:09:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1145 states have (on average 3.7921397379912665) internal successors, (4342), 1145 states have internal predecessors, (4342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 4342 transitions. [2022-03-01 17:09:44,829 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 4342 transitions. Word has length 25 [2022-03-01 17:09:44,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:44,829 INFO L470 AbstractCegarLoop]: Abstraction has 1146 states and 4342 transitions. [2022-03-01 17:09:44,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 4342 transitions. [2022-03-01 17:09:44,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:44,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:44,831 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] [2022-03-01 17:09:44,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651 [2022-03-01 17:09:44,831 INFO L402 AbstractCegarLoop]: === Iteration 653 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:44,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1358480405, now seen corresponding path program 648 times [2022-03-01 17:09:44,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:44,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252649150] [2022-03-01 17:09:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:44,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:44,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:44,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252649150] [2022-03-01 17:09:44,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252649150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:44,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:44,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:44,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042520187] [2022-03-01 17:09:44,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:44,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:44,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:44,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:44,911 INFO L87 Difference]: Start difference. First operand 1146 states and 4342 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:44,988 INFO L93 Difference]: Finished difference Result 2020 states and 7288 transitions. [2022-03-01 17:09:44,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:44,992 INFO L225 Difference]: With dead ends: 2020 [2022-03-01 17:09:44,992 INFO L226 Difference]: Without dead ends: 1709 [2022-03-01 17:09:44,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:44,993 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:44,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 102 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-03-01 17:09:45,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1057. [2022-03-01 17:09:45,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 3.847537878787879) internal successors, (4063), 1056 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4063 transitions. [2022-03-01 17:09:45,010 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4063 transitions. Word has length 25 [2022-03-01 17:09:45,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:45,010 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4063 transitions. [2022-03-01 17:09:45,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4063 transitions. [2022-03-01 17:09:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:45,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:45,011 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] [2022-03-01 17:09:45,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652 [2022-03-01 17:09:45,012 INFO L402 AbstractCegarLoop]: === Iteration 654 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:45,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:45,012 INFO L85 PathProgramCache]: Analyzing trace with hash 826629269, now seen corresponding path program 649 times [2022-03-01 17:09:45,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:45,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556076114] [2022-03-01 17:09:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:45,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:45,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:45,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:45,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556076114] [2022-03-01 17:09:45,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556076114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:45,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:45,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:45,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380630692] [2022-03-01 17:09:45,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:45,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:45,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:45,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:45,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:45,088 INFO L87 Difference]: Start difference. First operand 1057 states and 4063 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:45,160 INFO L93 Difference]: Finished difference Result 2000 states and 7196 transitions. [2022-03-01 17:09:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:45,160 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:45,163 INFO L225 Difference]: With dead ends: 2000 [2022-03-01 17:09:45,163 INFO L226 Difference]: Without dead ends: 1811 [2022-03-01 17:09:45,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:45,163 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 101 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:45,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 107 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2022-03-01 17:09:45,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1087. [2022-03-01 17:09:45,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 3.826887661141805) internal successors, (4156), 1086 states have internal predecessors, (4156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 4156 transitions. [2022-03-01 17:09:45,180 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 4156 transitions. Word has length 25 [2022-03-01 17:09:45,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:45,180 INFO L470 AbstractCegarLoop]: Abstraction has 1087 states and 4156 transitions. [2022-03-01 17:09:45,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 4156 transitions. [2022-03-01 17:09:45,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:45,182 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:45,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:45,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653 [2022-03-01 17:09:45,182 INFO L402 AbstractCegarLoop]: === Iteration 655 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:45,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1216707725, now seen corresponding path program 650 times [2022-03-01 17:09:45,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:45,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601946967] [2022-03-01 17:09:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:45,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:45,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:45,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:45,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601946967] [2022-03-01 17:09:45,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601946967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:45,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:45,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:45,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217682855] [2022-03-01 17:09:45,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:45,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:45,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:45,257 INFO L87 Difference]: Start difference. First operand 1087 states and 4156 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:45,330 INFO L93 Difference]: Finished difference Result 1998 states and 7161 transitions. [2022-03-01 17:09:45,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:45,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:45,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:45,334 INFO L225 Difference]: With dead ends: 1998 [2022-03-01 17:09:45,334 INFO L226 Difference]: Without dead ends: 1781 [2022-03-01 17:09:45,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:45,334 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 97 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:45,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 111 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-03-01 17:09:45,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1057. [2022-03-01 17:09:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 3.836174242424242) internal successors, (4051), 1056 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4051 transitions. [2022-03-01 17:09:45,351 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4051 transitions. Word has length 25 [2022-03-01 17:09:45,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:45,351 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4051 transitions. [2022-03-01 17:09:45,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4051 transitions. [2022-03-01 17:09:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:45,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:45,352 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] [2022-03-01 17:09:45,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654 [2022-03-01 17:09:45,353 INFO L402 AbstractCegarLoop]: === Iteration 656 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:45,353 INFO L85 PathProgramCache]: Analyzing trace with hash 30602389, now seen corresponding path program 651 times [2022-03-01 17:09:45,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:45,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275836349] [2022-03-01 17:09:45,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:45,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:45,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:45,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275836349] [2022-03-01 17:09:45,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275836349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:45,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:45,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:45,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350504528] [2022-03-01 17:09:45,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:45,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:45,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:45,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:45,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:45,451 INFO L87 Difference]: Start difference. First operand 1057 states and 4051 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:45,523 INFO L93 Difference]: Finished difference Result 1982 states and 7121 transitions. [2022-03-01 17:09:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:45,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:45,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:45,527 INFO L225 Difference]: With dead ends: 1982 [2022-03-01 17:09:45,528 INFO L226 Difference]: Without dead ends: 1793 [2022-03-01 17:09:45,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:45,528 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:45,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 106 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:45,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2022-03-01 17:09:45,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1081. [2022-03-01 17:09:45,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 3.821296296296296) internal successors, (4127), 1080 states have internal predecessors, (4127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 4127 transitions. [2022-03-01 17:09:45,557 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 4127 transitions. Word has length 25 [2022-03-01 17:09:45,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:45,557 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 4127 transitions. [2022-03-01 17:09:45,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 4127 transitions. [2022-03-01 17:09:45,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:45,559 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:45,559 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] [2022-03-01 17:09:45,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655 [2022-03-01 17:09:45,559 INFO L402 AbstractCegarLoop]: === Iteration 657 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:45,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:45,559 INFO L85 PathProgramCache]: Analyzing trace with hash 586390677, now seen corresponding path program 652 times [2022-03-01 17:09:45,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:45,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513447778] [2022-03-01 17:09:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:45,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:45,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:45,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:45,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513447778] [2022-03-01 17:09:45,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513447778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:45,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:45,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:45,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864974419] [2022-03-01 17:09:45,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:45,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:45,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:45,654 INFO L87 Difference]: Start difference. First operand 1081 states and 4127 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:45,742 INFO L93 Difference]: Finished difference Result 1968 states and 7052 transitions. [2022-03-01 17:09:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:45,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:45,746 INFO L225 Difference]: With dead ends: 1968 [2022-03-01 17:09:45,746 INFO L226 Difference]: Without dead ends: 1769 [2022-03-01 17:09:45,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:45,746 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 101 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:45,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 105 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:45,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2022-03-01 17:09:45,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1057. [2022-03-01 17:09:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 3.824810606060606) internal successors, (4039), 1056 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 4039 transitions. [2022-03-01 17:09:45,763 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 4039 transitions. Word has length 25 [2022-03-01 17:09:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:45,763 INFO L470 AbstractCegarLoop]: Abstraction has 1057 states and 4039 transitions. [2022-03-01 17:09:45,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 4039 transitions. [2022-03-01 17:09:45,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:45,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:45,765 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] [2022-03-01 17:09:45,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656 [2022-03-01 17:09:45,765 INFO L402 AbstractCegarLoop]: === Iteration 658 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:45,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:45,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1012950003, now seen corresponding path program 653 times [2022-03-01 17:09:45,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:45,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981970535] [2022-03-01 17:09:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:45,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:45,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:45,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:45,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981970535] [2022-03-01 17:09:45,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981970535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:45,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:45,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:45,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808516363] [2022-03-01 17:09:45,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:45,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:45,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:45,867 INFO L87 Difference]: Start difference. First operand 1057 states and 4039 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:45,965 INFO L93 Difference]: Finished difference Result 1978 states and 7099 transitions. [2022-03-01 17:09:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:45,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:45,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:45,970 INFO L225 Difference]: With dead ends: 1978 [2022-03-01 17:09:45,970 INFO L226 Difference]: Without dead ends: 1791 [2022-03-01 17:09:45,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:45,970 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 112 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:45,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 119 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2022-03-01 17:09:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1081. [2022-03-01 17:09:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 3.810185185185185) internal successors, (4115), 1080 states have internal predecessors, (4115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 4115 transitions. [2022-03-01 17:09:45,986 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 4115 transitions. Word has length 25 [2022-03-01 17:09:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:45,986 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 4115 transitions. [2022-03-01 17:09:45,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 4115 transitions. [2022-03-01 17:09:45,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:45,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:45,988 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] [2022-03-01 17:09:45,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657 [2022-03-01 17:09:45,988 INFO L402 AbstractCegarLoop]: === Iteration 659 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:45,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:45,988 INFO L85 PathProgramCache]: Analyzing trace with hash 806142037, now seen corresponding path program 654 times [2022-03-01 17:09:45,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:45,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137800649] [2022-03-01 17:09:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:46,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:46,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137800649] [2022-03-01 17:09:46,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137800649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:46,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:46,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:46,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608405468] [2022-03-01 17:09:46,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:46,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:46,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:46,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:46,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:46,089 INFO L87 Difference]: Start difference. First operand 1081 states and 4115 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:46,177 INFO L93 Difference]: Finished difference Result 1966 states and 7035 transitions. [2022-03-01 17:09:46,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:46,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:46,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:46,180 INFO L225 Difference]: With dead ends: 1966 [2022-03-01 17:09:46,180 INFO L226 Difference]: Without dead ends: 1755 [2022-03-01 17:09:46,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:46,180 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 117 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:46,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 104 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2022-03-01 17:09:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1045. [2022-03-01 17:09:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1044 states have (on average 3.832375478927203) internal successors, (4001), 1044 states have internal predecessors, (4001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 4001 transitions. [2022-03-01 17:09:46,196 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 4001 transitions. Word has length 25 [2022-03-01 17:09:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:46,196 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 4001 transitions. [2022-03-01 17:09:46,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 4001 transitions. [2022-03-01 17:09:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:46,198 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:46,198 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] [2022-03-01 17:09:46,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2022-03-01 17:09:46,198 INFO L402 AbstractCegarLoop]: === Iteration 660 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash 92169079, now seen corresponding path program 655 times [2022-03-01 17:09:46,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:46,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917563878] [2022-03-01 17:09:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:46,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:46,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:46,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917563878] [2022-03-01 17:09:46,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917563878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:46,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:46,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:46,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068207218] [2022-03-01 17:09:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:46,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:46,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:46,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:46,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:46,311 INFO L87 Difference]: Start difference. First operand 1045 states and 4001 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:46,408 INFO L93 Difference]: Finished difference Result 2066 states and 7395 transitions. [2022-03-01 17:09:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:46,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:46,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:46,412 INFO L225 Difference]: With dead ends: 2066 [2022-03-01 17:09:46,412 INFO L226 Difference]: Without dead ends: 1877 [2022-03-01 17:09:46,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:46,412 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 104 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:46,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 118 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:46,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2022-03-01 17:09:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1045. [2022-03-01 17:09:46,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1044 states have (on average 3.803639846743295) internal successors, (3971), 1044 states have internal predecessors, (3971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3971 transitions. [2022-03-01 17:09:46,429 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3971 transitions. Word has length 25 [2022-03-01 17:09:46,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:46,429 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 3971 transitions. [2022-03-01 17:09:46,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3971 transitions. [2022-03-01 17:09:46,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:46,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:46,431 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] [2022-03-01 17:09:46,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2022-03-01 17:09:46,431 INFO L402 AbstractCegarLoop]: === Iteration 661 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:46,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:46,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1951167915, now seen corresponding path program 656 times [2022-03-01 17:09:46,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:46,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123923149] [2022-03-01 17:09:46,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:46,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:46,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:46,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:46,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123923149] [2022-03-01 17:09:46,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123923149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:46,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:46,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:46,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067725379] [2022-03-01 17:09:46,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:46,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:46,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:46,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:46,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:46,530 INFO L87 Difference]: Start difference. First operand 1045 states and 3971 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:46,665 INFO L93 Difference]: Finished difference Result 2064 states and 7360 transitions. [2022-03-01 17:09:46,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:46,665 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:46,671 INFO L225 Difference]: With dead ends: 2064 [2022-03-01 17:09:46,671 INFO L226 Difference]: Without dead ends: 1847 [2022-03-01 17:09:46,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:46,671 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:46,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 123 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2022-03-01 17:09:46,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1015. [2022-03-01 17:09:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 3.809664694280079) internal successors, (3863), 1014 states have internal predecessors, (3863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3863 transitions. [2022-03-01 17:09:46,691 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3863 transitions. Word has length 25 [2022-03-01 17:09:46,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:46,692 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 3863 transitions. [2022-03-01 17:09:46,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3863 transitions. [2022-03-01 17:09:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:46,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:46,694 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] [2022-03-01 17:09:46,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2022-03-01 17:09:46,694 INFO L402 AbstractCegarLoop]: === Iteration 662 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:46,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:46,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1450421099, now seen corresponding path program 657 times [2022-03-01 17:09:46,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:46,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835738133] [2022-03-01 17:09:46,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:46,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:46,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:46,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835738133] [2022-03-01 17:09:46,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835738133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:46,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:46,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:46,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585954888] [2022-03-01 17:09:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:46,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:46,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:46,884 INFO L87 Difference]: Start difference. First operand 1015 states and 3863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:47,055 INFO L93 Difference]: Finished difference Result 2072 states and 7393 transitions. [2022-03-01 17:09:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:47,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:47,060 INFO L225 Difference]: With dead ends: 2072 [2022-03-01 17:09:47,060 INFO L226 Difference]: Without dead ends: 1883 [2022-03-01 17:09:47,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:47,060 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:47,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 117 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:47,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2022-03-01 17:09:47,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1078. [2022-03-01 17:09:47,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 3.7790157845868153) internal successors, (4070), 1077 states have internal predecessors, (4070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 4070 transitions. [2022-03-01 17:09:47,077 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 4070 transitions. Word has length 25 [2022-03-01 17:09:47,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:47,077 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 4070 transitions. [2022-03-01 17:09:47,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 4070 transitions. [2022-03-01 17:09:47,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:47,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:47,079 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] [2022-03-01 17:09:47,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661 [2022-03-01 17:09:47,079 INFO L402 AbstractCegarLoop]: === Iteration 663 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:47,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:47,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2006209387, now seen corresponding path program 658 times [2022-03-01 17:09:47,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:47,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543877614] [2022-03-01 17:09:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:47,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:47,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:47,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543877614] [2022-03-01 17:09:47,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543877614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:47,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:47,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:47,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38008175] [2022-03-01 17:09:47,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:47,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:47,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:47,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:47,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:47,200 INFO L87 Difference]: Start difference. First operand 1078 states and 4070 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:47,296 INFO L93 Difference]: Finished difference Result 1977 states and 7091 transitions. [2022-03-01 17:09:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:47,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:47,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:47,299 INFO L225 Difference]: With dead ends: 1977 [2022-03-01 17:09:47,300 INFO L226 Difference]: Without dead ends: 1692 [2022-03-01 17:09:47,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:47,300 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 112 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:47,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 100 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:47,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-03-01 17:09:47,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1015. [2022-03-01 17:09:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1014 states have (on average 3.7790927021696255) internal successors, (3832), 1014 states have internal predecessors, (3832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3832 transitions. [2022-03-01 17:09:47,316 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3832 transitions. Word has length 25 [2022-03-01 17:09:47,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:47,316 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 3832 transitions. [2022-03-01 17:09:47,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3832 transitions. [2022-03-01 17:09:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:47,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:47,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:47,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662 [2022-03-01 17:09:47,318 INFO L402 AbstractCegarLoop]: === Iteration 664 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash -468073485, now seen corresponding path program 659 times [2022-03-01 17:09:47,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:47,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347543364] [2022-03-01 17:09:47,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:47,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:47,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:47,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347543364] [2022-03-01 17:09:47,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347543364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:47,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:47,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:47,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504692911] [2022-03-01 17:09:47,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:47,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:47,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:47,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:47,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:47,406 INFO L87 Difference]: Start difference. First operand 1015 states and 3832 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:47,528 INFO L93 Difference]: Finished difference Result 2053 states and 7306 transitions. [2022-03-01 17:09:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:47,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:47,532 INFO L225 Difference]: With dead ends: 2053 [2022-03-01 17:09:47,532 INFO L226 Difference]: Without dead ends: 1866 [2022-03-01 17:09:47,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:47,532 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 99 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:47,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 123 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-03-01 17:09:47,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1061. [2022-03-01 17:09:47,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 1060 states have (on average 3.763207547169811) internal successors, (3989), 1060 states have internal predecessors, (3989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 3989 transitions. [2022-03-01 17:09:47,551 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 3989 transitions. Word has length 25 [2022-03-01 17:09:47,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:47,551 INFO L470 AbstractCegarLoop]: Abstraction has 1061 states and 3989 transitions. [2022-03-01 17:09:47,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 3989 transitions. [2022-03-01 17:09:47,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:47,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:47,552 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] [2022-03-01 17:09:47,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663 [2022-03-01 17:09:47,552 INFO L402 AbstractCegarLoop]: === Iteration 665 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:47,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1469504213, now seen corresponding path program 660 times [2022-03-01 17:09:47,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:47,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989307013] [2022-03-01 17:09:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:47,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:47,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:47,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989307013] [2022-03-01 17:09:47,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989307013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:47,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:47,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:47,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883580526] [2022-03-01 17:09:47,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:47,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:47,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:47,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:47,680 INFO L87 Difference]: Start difference. First operand 1061 states and 3989 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:47,780 INFO L93 Difference]: Finished difference Result 1960 states and 7010 transitions. [2022-03-01 17:09:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:47,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:47,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:47,794 INFO L225 Difference]: With dead ends: 1960 [2022-03-01 17:09:47,794 INFO L226 Difference]: Without dead ends: 1653 [2022-03-01 17:09:47,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:47,794 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 103 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:47,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 111 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-03-01 17:09:47,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 976. [2022-03-01 17:09:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 3.802051282051282) internal successors, (3707), 975 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 3707 transitions. [2022-03-01 17:09:47,810 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 3707 transitions. Word has length 25 [2022-03-01 17:09:47,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:47,810 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 3707 transitions. [2022-03-01 17:09:47,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 3707 transitions. [2022-03-01 17:09:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:47,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:47,812 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] [2022-03-01 17:09:47,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2022-03-01 17:09:47,812 INFO L402 AbstractCegarLoop]: === Iteration 666 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:47,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1145126037, now seen corresponding path program 661 times [2022-03-01 17:09:47,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:47,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137022574] [2022-03-01 17:09:47,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:47,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:47,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:47,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137022574] [2022-03-01 17:09:47,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137022574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:47,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:47,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:47,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722540384] [2022-03-01 17:09:47,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:47,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:47,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:47,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:47,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:47,932 INFO L87 Difference]: Start difference. First operand 976 states and 3707 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:48,035 INFO L93 Difference]: Finished difference Result 1957 states and 6997 transitions. [2022-03-01 17:09:48,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:48,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:48,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:48,039 INFO L225 Difference]: With dead ends: 1957 [2022-03-01 17:09:48,039 INFO L226 Difference]: Without dead ends: 1768 [2022-03-01 17:09:48,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:48,039 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 108 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:48,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 108 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-03-01 17:09:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1028. [2022-03-01 17:09:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1027 states have (on average 3.8003894839337877) internal successors, (3903), 1027 states have internal predecessors, (3903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 3903 transitions. [2022-03-01 17:09:48,056 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 3903 transitions. Word has length 25 [2022-03-01 17:09:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:48,056 INFO L470 AbstractCegarLoop]: Abstraction has 1028 states and 3903 transitions. [2022-03-01 17:09:48,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 3903 transitions. [2022-03-01 17:09:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:48,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:48,057 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] [2022-03-01 17:09:48,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665 [2022-03-01 17:09:48,057 INFO L402 AbstractCegarLoop]: === Iteration 667 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:48,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:48,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1700914325, now seen corresponding path program 662 times [2022-03-01 17:09:48,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:48,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894857232] [2022-03-01 17:09:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:48,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:48,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894857232] [2022-03-01 17:09:48,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894857232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:48,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:48,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:48,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314455805] [2022-03-01 17:09:48,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:48,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:48,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:48,160 INFO L87 Difference]: Start difference. First operand 1028 states and 3903 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:48,240 INFO L93 Difference]: Finished difference Result 1943 states and 6928 transitions. [2022-03-01 17:09:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:48,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:48,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:48,244 INFO L225 Difference]: With dead ends: 1943 [2022-03-01 17:09:48,244 INFO L226 Difference]: Without dead ends: 1744 [2022-03-01 17:09:48,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:48,244 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:48,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 99 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-03-01 17:09:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1004. [2022-03-01 17:09:48,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1003 states have (on average 3.8035892323030907) internal successors, (3815), 1003 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3815 transitions. [2022-03-01 17:09:48,260 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3815 transitions. Word has length 25 [2022-03-01 17:09:48,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:48,260 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3815 transitions. [2022-03-01 17:09:48,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3815 transitions. [2022-03-01 17:09:48,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:48,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:48,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:48,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666 [2022-03-01 17:09:48,262 INFO L402 AbstractCegarLoop]: === Iteration 668 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:48,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash 527602679, now seen corresponding path program 663 times [2022-03-01 17:09:48,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:48,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478582089] [2022-03-01 17:09:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:48,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:48,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478582089] [2022-03-01 17:09:48,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478582089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:48,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:48,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:48,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537681394] [2022-03-01 17:09:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:48,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:48,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:48,341 INFO L87 Difference]: Start difference. First operand 1004 states and 3815 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:48,415 INFO L93 Difference]: Finished difference Result 1918 states and 6823 transitions. [2022-03-01 17:09:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:48,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:48,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:48,419 INFO L225 Difference]: With dead ends: 1918 [2022-03-01 17:09:48,419 INFO L226 Difference]: Without dead ends: 1729 [2022-03-01 17:09:48,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:48,419 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 125 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:48,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 107 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:48,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-03-01 17:09:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1067. [2022-03-01 17:09:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1066 states have (on average 3.772983114446529) internal successors, (4022), 1066 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 4022 transitions. [2022-03-01 17:09:48,435 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 4022 transitions. Word has length 25 [2022-03-01 17:09:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:48,435 INFO L470 AbstractCegarLoop]: Abstraction has 1067 states and 4022 transitions. [2022-03-01 17:09:48,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 4022 transitions. [2022-03-01 17:09:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:48,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:48,436 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] [2022-03-01 17:09:48,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667 [2022-03-01 17:09:48,437 INFO L402 AbstractCegarLoop]: === Iteration 669 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:48,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:48,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1811104917, now seen corresponding path program 664 times [2022-03-01 17:09:48,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:48,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133022596] [2022-03-01 17:09:48,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:48,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:48,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:48,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133022596] [2022-03-01 17:09:48,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133022596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:48,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:48,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:48,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496215047] [2022-03-01 17:09:48,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:48,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:48,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:48,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:48,522 INFO L87 Difference]: Start difference. First operand 1067 states and 4022 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:48,596 INFO L93 Difference]: Finished difference Result 1823 states and 6521 transitions. [2022-03-01 17:09:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:48,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:48,600 INFO L225 Difference]: With dead ends: 1823 [2022-03-01 17:09:48,600 INFO L226 Difference]: Without dead ends: 1538 [2022-03-01 17:09:48,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:48,600 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 99 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:48,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 125 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:48,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2022-03-01 17:09:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1004. [2022-03-01 17:09:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1003 states have (on average 3.7756729810568297) internal successors, (3787), 1003 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 3787 transitions. [2022-03-01 17:09:48,615 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 3787 transitions. Word has length 25 [2022-03-01 17:09:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:48,615 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 3787 transitions. [2022-03-01 17:09:48,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 3787 transitions. [2022-03-01 17:09:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:48,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:48,617 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] [2022-03-01 17:09:48,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668 [2022-03-01 17:09:48,617 INFO L402 AbstractCegarLoop]: === Iteration 670 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:48,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash 164314261, now seen corresponding path program 665 times [2022-03-01 17:09:48,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:48,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649438633] [2022-03-01 17:09:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:48,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:48,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649438633] [2022-03-01 17:09:48,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649438633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:48,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:48,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:48,760 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642074582] [2022-03-01 17:09:48,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:48,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:48,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:48,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:48,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:48,760 INFO L87 Difference]: Start difference. First operand 1004 states and 3787 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:48,878 INFO L93 Difference]: Finished difference Result 1753 states and 6291 transitions. [2022-03-01 17:09:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:48,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:48,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:48,881 INFO L225 Difference]: With dead ends: 1753 [2022-03-01 17:09:48,881 INFO L226 Difference]: Without dead ends: 1578 [2022-03-01 17:09:48,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:48,882 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 94 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:48,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 121 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:48,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2022-03-01 17:09:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1044. [2022-03-01 17:09:48,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 3.7651006711409396) internal successors, (3927), 1043 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3927 transitions. [2022-03-01 17:09:48,898 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3927 transitions. Word has length 25 [2022-03-01 17:09:48,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:48,898 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 3927 transitions. [2022-03-01 17:09:48,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:48,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3927 transitions. [2022-03-01 17:09:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:48,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:48,899 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] [2022-03-01 17:09:48,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669 [2022-03-01 17:09:48,900 INFO L402 AbstractCegarLoop]: === Iteration 671 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 382665847, now seen corresponding path program 666 times [2022-03-01 17:09:48,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:48,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313131547] [2022-03-01 17:09:48,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:48,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:49,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:49,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:49,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313131547] [2022-03-01 17:09:49,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313131547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:49,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:49,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:49,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10524867] [2022-03-01 17:09:49,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:49,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:49,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:49,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:49,014 INFO L87 Difference]: Start difference. First operand 1044 states and 3927 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:49,090 INFO L93 Difference]: Finished difference Result 1577 states and 5706 transitions. [2022-03-01 17:09:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:49,092 INFO L225 Difference]: With dead ends: 1577 [2022-03-01 17:09:49,092 INFO L226 Difference]: Without dead ends: 1287 [2022-03-01 17:09:49,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:49,093 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 89 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:49,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 110 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2022-03-01 17:09:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 976. [2022-03-01 17:09:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 3.787692307692308) internal successors, (3693), 975 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 3693 transitions. [2022-03-01 17:09:49,107 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 3693 transitions. Word has length 25 [2022-03-01 17:09:49,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:49,107 INFO L470 AbstractCegarLoop]: Abstraction has 976 states and 3693 transitions. [2022-03-01 17:09:49,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,107 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 3693 transitions. [2022-03-01 17:09:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:49,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:49,108 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] [2022-03-01 17:09:49,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670 [2022-03-01 17:09:49,109 INFO L402 AbstractCegarLoop]: === Iteration 672 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:49,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2117522547, now seen corresponding path program 667 times [2022-03-01 17:09:49,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:49,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479479092] [2022-03-01 17:09:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:49,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:49,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479479092] [2022-03-01 17:09:49,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479479092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:49,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:49,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:49,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140147174] [2022-03-01 17:09:49,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:49,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:49,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:49,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:49,187 INFO L87 Difference]: Start difference. First operand 976 states and 3693 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:49,263 INFO L93 Difference]: Finished difference Result 1928 states and 6894 transitions. [2022-03-01 17:09:49,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:49,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:49,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:49,267 INFO L225 Difference]: With dead ends: 1928 [2022-03-01 17:09:49,267 INFO L226 Difference]: Without dead ends: 1741 [2022-03-01 17:09:49,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:49,267 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:49,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 123 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-03-01 17:09:49,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1020. [2022-03-01 17:09:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 1019 states have (on average 3.78900883218842) internal successors, (3861), 1019 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 3861 transitions. [2022-03-01 17:09:49,284 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 3861 transitions. Word has length 25 [2022-03-01 17:09:49,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:49,284 INFO L470 AbstractCegarLoop]: Abstraction has 1020 states and 3861 transitions. [2022-03-01 17:09:49,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 3861 transitions. [2022-03-01 17:09:49,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:49,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:49,286 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] [2022-03-01 17:09:49,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671 [2022-03-01 17:09:49,286 INFO L402 AbstractCegarLoop]: === Iteration 673 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:49,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1910714581, now seen corresponding path program 668 times [2022-03-01 17:09:49,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:49,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208020114] [2022-03-01 17:09:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:49,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:49,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:49,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208020114] [2022-03-01 17:09:49,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208020114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:49,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:49,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:49,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221653177] [2022-03-01 17:09:49,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:49,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:49,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:49,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:49,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:49,361 INFO L87 Difference]: Start difference. First operand 1020 states and 3861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:49,449 INFO L93 Difference]: Finished difference Result 1916 states and 6830 transitions. [2022-03-01 17:09:49,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:49,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:49,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:49,453 INFO L225 Difference]: With dead ends: 1916 [2022-03-01 17:09:49,453 INFO L226 Difference]: Without dead ends: 1717 [2022-03-01 17:09:49,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:49,453 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 91 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:49,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 139 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2022-03-01 17:09:49,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 996. [2022-03-01 17:09:49,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 995 states have (on average 3.791959798994975) internal successors, (3773), 995 states have internal predecessors, (3773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 3773 transitions. [2022-03-01 17:09:49,470 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 3773 transitions. Word has length 25 [2022-03-01 17:09:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:49,470 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 3773 transitions. [2022-03-01 17:09:49,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,471 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 3773 transitions. [2022-03-01 17:09:49,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:49,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:49,472 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] [2022-03-01 17:09:49,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672 [2022-03-01 17:09:49,472 INFO L402 AbstractCegarLoop]: === Iteration 674 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:49,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1499999189, now seen corresponding path program 669 times [2022-03-01 17:09:49,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:49,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526958454] [2022-03-01 17:09:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:49,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:49,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:49,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526958454] [2022-03-01 17:09:49,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526958454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:49,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:49,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:49,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596402469] [2022-03-01 17:09:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:49,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:49,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:49,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:49,551 INFO L87 Difference]: Start difference. First operand 996 states and 3773 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:49,633 INFO L93 Difference]: Finished difference Result 1891 states and 6725 transitions. [2022-03-01 17:09:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:49,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:49,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:49,637 INFO L225 Difference]: With dead ends: 1891 [2022-03-01 17:09:49,637 INFO L226 Difference]: Without dead ends: 1704 [2022-03-01 17:09:49,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:49,637 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:49,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 119 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:49,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-03-01 17:09:49,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1042. [2022-03-01 17:09:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1041 states have (on average 3.7752161383285303) internal successors, (3930), 1041 states have internal predecessors, (3930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3930 transitions. [2022-03-01 17:09:49,663 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3930 transitions. Word has length 25 [2022-03-01 17:09:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:49,664 INFO L470 AbstractCegarLoop]: Abstraction has 1042 states and 3930 transitions. [2022-03-01 17:09:49,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3930 transitions. [2022-03-01 17:09:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:49,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:49,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:49,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673 [2022-03-01 17:09:49,665 INFO L402 AbstractCegarLoop]: === Iteration 675 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:49,666 INFO L85 PathProgramCache]: Analyzing trace with hash 981900117, now seen corresponding path program 670 times [2022-03-01 17:09:49,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:49,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681897431] [2022-03-01 17:09:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:49,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:49,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:49,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681897431] [2022-03-01 17:09:49,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681897431] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:49,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:49,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:49,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855813372] [2022-03-01 17:09:49,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:49,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:49,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:49,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:49,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:49,768 INFO L87 Difference]: Start difference. First operand 1042 states and 3930 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:49,851 INFO L93 Difference]: Finished difference Result 1798 states and 6429 transitions. [2022-03-01 17:09:49,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:49,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:49,854 INFO L225 Difference]: With dead ends: 1798 [2022-03-01 17:09:49,854 INFO L226 Difference]: Without dead ends: 1530 [2022-03-01 17:09:49,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:49,854 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 116 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:49,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 120 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-03-01 17:09:49,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 996. [2022-03-01 17:09:49,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 995 states have (on average 3.771859296482412) internal successors, (3753), 995 states have internal predecessors, (3753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 3753 transitions. [2022-03-01 17:09:49,870 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 3753 transitions. Word has length 25 [2022-03-01 17:09:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:49,870 INFO L470 AbstractCegarLoop]: Abstraction has 996 states and 3753 transitions. [2022-03-01 17:09:49,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:49,870 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 3753 transitions. [2022-03-01 17:09:49,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:49,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:49,871 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] [2022-03-01 17:09:49,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674 [2022-03-01 17:09:49,871 INFO L402 AbstractCegarLoop]: === Iteration 676 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:49,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:49,872 INFO L85 PathProgramCache]: Analyzing trace with hash -92924105, now seen corresponding path program 671 times [2022-03-01 17:09:49,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:49,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842191516] [2022-03-01 17:09:49,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:49,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:49,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:49,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842191516] [2022-03-01 17:09:49,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842191516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:49,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:49,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:49,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621390643] [2022-03-01 17:09:49,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:49,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:49,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:49,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:49,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:49,970 INFO L87 Difference]: Start difference. First operand 996 states and 3753 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:50,079 INFO L93 Difference]: Finished difference Result 1745 states and 6257 transitions. [2022-03-01 17:09:50,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:50,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:50,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:50,083 INFO L225 Difference]: With dead ends: 1745 [2022-03-01 17:09:50,083 INFO L226 Difference]: Without dead ends: 1570 [2022-03-01 17:09:50,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:50,083 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 101 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:50,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 110 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:50,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-03-01 17:09:50,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1036. [2022-03-01 17:09:50,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1035 states have (on average 3.761352657004831) internal successors, (3893), 1035 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 3893 transitions. [2022-03-01 17:09:50,099 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 3893 transitions. Word has length 25 [2022-03-01 17:09:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:50,099 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 3893 transitions. [2022-03-01 17:09:50,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 3893 transitions. [2022-03-01 17:09:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:50,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:50,101 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] [2022-03-01 17:09:50,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675 [2022-03-01 17:09:50,101 INFO L402 AbstractCegarLoop]: === Iteration 677 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:50,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:50,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1913959531, now seen corresponding path program 672 times [2022-03-01 17:09:50,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:50,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645093632] [2022-03-01 17:09:50,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:50,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:50,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:50,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645093632] [2022-03-01 17:09:50,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645093632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:50,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:50,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:50,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28177979] [2022-03-01 17:09:50,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:50,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:50,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:50,201 INFO L87 Difference]: Start difference. First operand 1036 states and 3893 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:50,274 INFO L93 Difference]: Finished difference Result 1569 states and 5672 transitions. [2022-03-01 17:09:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:50,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:50,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:50,277 INFO L225 Difference]: With dead ends: 1569 [2022-03-01 17:09:50,277 INFO L226 Difference]: Without dead ends: 1269 [2022-03-01 17:09:50,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:50,277 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 83 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:50,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 113 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:50,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2022-03-01 17:09:50,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 958. [2022-03-01 17:09:50,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 3.806687565308255) internal successors, (3643), 957 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3643 transitions. [2022-03-01 17:09:50,292 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3643 transitions. Word has length 25 [2022-03-01 17:09:50,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:50,292 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3643 transitions. [2022-03-01 17:09:50,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3643 transitions. [2022-03-01 17:09:50,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:50,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:50,293 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] [2022-03-01 17:09:50,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676 [2022-03-01 17:09:50,294 INFO L402 AbstractCegarLoop]: === Iteration 678 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:50,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:50,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1003195149, now seen corresponding path program 673 times [2022-03-01 17:09:50,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:50,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256331102] [2022-03-01 17:09:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:50,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:50,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:50,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256331102] [2022-03-01 17:09:50,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256331102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:50,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:50,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:50,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302596917] [2022-03-01 17:09:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:50,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:50,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:50,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:50,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:50,448 INFO L87 Difference]: Start difference. First operand 958 states and 3643 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:50,547 INFO L93 Difference]: Finished difference Result 1805 states and 6424 transitions. [2022-03-01 17:09:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:50,550 INFO L225 Difference]: With dead ends: 1805 [2022-03-01 17:09:50,550 INFO L226 Difference]: Without dead ends: 1616 [2022-03-01 17:09:50,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:50,550 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 102 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:50,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 104 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-03-01 17:09:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 986. [2022-03-01 17:09:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 3.7878172588832486) internal successors, (3731), 985 states have internal predecessors, (3731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 3731 transitions. [2022-03-01 17:09:50,566 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 3731 transitions. Word has length 25 [2022-03-01 17:09:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:50,566 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 3731 transitions. [2022-03-01 17:09:50,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 3731 transitions. [2022-03-01 17:09:50,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:50,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:50,567 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] [2022-03-01 17:09:50,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2022-03-01 17:09:50,568 INFO L402 AbstractCegarLoop]: === Iteration 679 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash 189271283, now seen corresponding path program 674 times [2022-03-01 17:09:50,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:50,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419216262] [2022-03-01 17:09:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:50,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:50,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:50,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419216262] [2022-03-01 17:09:50,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419216262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:50,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:50,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:50,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978821324] [2022-03-01 17:09:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:50,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:50,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:50,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:50,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:50,684 INFO L87 Difference]: Start difference. First operand 986 states and 3731 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:50,781 INFO L93 Difference]: Finished difference Result 1799 states and 6379 transitions. [2022-03-01 17:09:50,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:50,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:50,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:50,784 INFO L225 Difference]: With dead ends: 1799 [2022-03-01 17:09:50,784 INFO L226 Difference]: Without dead ends: 1588 [2022-03-01 17:09:50,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:50,785 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 118 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:50,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 106 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:50,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2022-03-01 17:09:50,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 958. [2022-03-01 17:09:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 3.794148380355277) internal successors, (3631), 957 states have internal predecessors, (3631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3631 transitions. [2022-03-01 17:09:50,800 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3631 transitions. Word has length 25 [2022-03-01 17:09:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:50,800 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3631 transitions. [2022-03-01 17:09:50,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:50,800 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3631 transitions. [2022-03-01 17:09:50,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:50,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:50,802 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] [2022-03-01 17:09:50,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678 [2022-03-01 17:09:50,802 INFO L402 AbstractCegarLoop]: === Iteration 680 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1484097195, now seen corresponding path program 675 times [2022-03-01 17:09:50,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:50,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36189971] [2022-03-01 17:09:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:50,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:50,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36189971] [2022-03-01 17:09:50,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36189971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:50,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:50,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:50,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327701898] [2022-03-01 17:09:50,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:50,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:50,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:50,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:50,920 INFO L87 Difference]: Start difference. First operand 958 states and 3631 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:51,031 INFO L93 Difference]: Finished difference Result 1793 states and 6368 transitions. [2022-03-01 17:09:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:51,034 INFO L225 Difference]: With dead ends: 1793 [2022-03-01 17:09:51,034 INFO L226 Difference]: Without dead ends: 1604 [2022-03-01 17:09:51,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:51,034 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 111 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:51,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 115 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:51,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-03-01 17:09:51,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 982. [2022-03-01 17:09:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 3.778797145769623) internal successors, (3707), 981 states have internal predecessors, (3707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 3707 transitions. [2022-03-01 17:09:51,049 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 3707 transitions. Word has length 25 [2022-03-01 17:09:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:51,049 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 3707 transitions. [2022-03-01 17:09:51,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 3707 transitions. [2022-03-01 17:09:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:51,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:51,051 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] [2022-03-01 17:09:51,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679 [2022-03-01 17:09:51,051 INFO L402 AbstractCegarLoop]: === Iteration 681 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1885220083, now seen corresponding path program 676 times [2022-03-01 17:09:51,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:51,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731337941] [2022-03-01 17:09:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:51,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:51,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:51,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731337941] [2022-03-01 17:09:51,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731337941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:51,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:51,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:51,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10547209] [2022-03-01 17:09:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:51,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:51,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:51,170 INFO L87 Difference]: Start difference. First operand 982 states and 3707 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:51,278 INFO L93 Difference]: Finished difference Result 1779 states and 6299 transitions. [2022-03-01 17:09:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:51,278 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:51,281 INFO L225 Difference]: With dead ends: 1779 [2022-03-01 17:09:51,281 INFO L226 Difference]: Without dead ends: 1580 [2022-03-01 17:09:51,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:51,281 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 112 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:51,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 114 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-03-01 17:09:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 958. [2022-03-01 17:09:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 957 states have (on average 3.781609195402299) internal successors, (3619), 957 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 3619 transitions. [2022-03-01 17:09:51,297 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 3619 transitions. Word has length 25 [2022-03-01 17:09:51,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:51,297 INFO L470 AbstractCegarLoop]: Abstraction has 958 states and 3619 transitions. [2022-03-01 17:09:51,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 3619 transitions. [2022-03-01 17:09:51,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:51,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:51,298 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] [2022-03-01 17:09:51,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680 [2022-03-01 17:09:51,298 INFO L402 AbstractCegarLoop]: === Iteration 682 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:51,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1725871347, now seen corresponding path program 677 times [2022-03-01 17:09:51,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:51,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494149733] [2022-03-01 17:09:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:51,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:51,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:51,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494149733] [2022-03-01 17:09:51,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494149733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:51,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:51,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:51,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617583220] [2022-03-01 17:09:51,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:51,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:51,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:51,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:51,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:51,420 INFO L87 Difference]: Start difference. First operand 958 states and 3619 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:51,517 INFO L93 Difference]: Finished difference Result 1781 states and 6322 transitions. [2022-03-01 17:09:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:51,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:51,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:51,520 INFO L225 Difference]: With dead ends: 1781 [2022-03-01 17:09:51,520 INFO L226 Difference]: Without dead ends: 1598 [2022-03-01 17:09:51,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:51,521 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 122 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:51,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 106 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-03-01 17:09:51,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 982. [2022-03-01 17:09:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 3.7665647298674823) internal successors, (3695), 981 states have internal predecessors, (3695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 3695 transitions. [2022-03-01 17:09:51,536 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 3695 transitions. Word has length 25 [2022-03-01 17:09:51,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:51,536 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 3695 transitions. [2022-03-01 17:09:51,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 3695 transitions. [2022-03-01 17:09:51,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:51,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:51,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:51,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681 [2022-03-01 17:09:51,538 INFO L402 AbstractCegarLoop]: === Iteration 683 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:51,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:51,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1488033323, now seen corresponding path program 678 times [2022-03-01 17:09:51,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:51,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894794028] [2022-03-01 17:09:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:51,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:51,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:51,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894794028] [2022-03-01 17:09:51,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894794028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:51,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:51,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:51,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794243851] [2022-03-01 17:09:51,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:51,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:51,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:51,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:51,654 INFO L87 Difference]: Start difference. First operand 982 states and 3695 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:51,758 INFO L93 Difference]: Finished difference Result 1773 states and 6270 transitions. [2022-03-01 17:09:51,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:51,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:51,762 INFO L225 Difference]: With dead ends: 1773 [2022-03-01 17:09:51,762 INFO L226 Difference]: Without dead ends: 1562 [2022-03-01 17:09:51,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:51,762 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 96 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:51,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 105 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-03-01 17:09:51,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 946. [2022-03-01 17:09:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 3.7894179894179896) internal successors, (3581), 945 states have internal predecessors, (3581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3581 transitions. [2022-03-01 17:09:51,777 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3581 transitions. Word has length 25 [2022-03-01 17:09:51,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:51,778 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3581 transitions. [2022-03-01 17:09:51,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3581 transitions. [2022-03-01 17:09:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:51,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:51,779 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] [2022-03-01 17:09:51,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682 [2022-03-01 17:09:51,779 INFO L402 AbstractCegarLoop]: === Iteration 684 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:51,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:51,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1737655339, now seen corresponding path program 679 times [2022-03-01 17:09:51,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:51,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888730217] [2022-03-01 17:09:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:51,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:51,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:51,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888730217] [2022-03-01 17:09:51,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888730217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:51,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:51,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:51,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067194480] [2022-03-01 17:09:51,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:51,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:51,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:51,911 INFO L87 Difference]: Start difference. First operand 946 states and 3581 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:52,020 INFO L93 Difference]: Finished difference Result 1832 states and 6485 transitions. [2022-03-01 17:09:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:52,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:52,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:52,023 INFO L225 Difference]: With dead ends: 1832 [2022-03-01 17:09:52,023 INFO L226 Difference]: Without dead ends: 1643 [2022-03-01 17:09:52,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:52,024 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 120 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:52,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 119 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2022-03-01 17:09:52,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 946. [2022-03-01 17:09:52,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 945 states have (on average 3.75978835978836) internal successors, (3553), 945 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 3553 transitions. [2022-03-01 17:09:52,039 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 3553 transitions. Word has length 25 [2022-03-01 17:09:52,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:52,039 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 3553 transitions. [2022-03-01 17:09:52,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 3553 transitions. [2022-03-01 17:09:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:52,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:52,040 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] [2022-03-01 17:09:52,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683 [2022-03-01 17:09:52,040 INFO L402 AbstractCegarLoop]: === Iteration 685 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:52,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash -545188907, now seen corresponding path program 680 times [2022-03-01 17:09:52,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:52,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776562759] [2022-03-01 17:09:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:52,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:52,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:52,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776562759] [2022-03-01 17:09:52,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776562759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:52,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:52,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:52,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116504307] [2022-03-01 17:09:52,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:52,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:52,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:52,156 INFO L87 Difference]: Start difference. First operand 946 states and 3553 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:52,259 INFO L93 Difference]: Finished difference Result 1826 states and 6440 transitions. [2022-03-01 17:09:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:52,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:52,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:52,262 INFO L225 Difference]: With dead ends: 1826 [2022-03-01 17:09:52,262 INFO L226 Difference]: Without dead ends: 1615 [2022-03-01 17:09:52,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:52,262 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 106 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:52,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 107 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2022-03-01 17:09:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 918. [2022-03-01 17:09:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 3.763358778625954) internal successors, (3451), 917 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3451 transitions. [2022-03-01 17:09:52,277 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3451 transitions. Word has length 25 [2022-03-01 17:09:52,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:52,277 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 3451 transitions. [2022-03-01 17:09:52,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3451 transitions. [2022-03-01 17:09:52,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:52,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:52,278 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] [2022-03-01 17:09:52,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684 [2022-03-01 17:09:52,279 INFO L402 AbstractCegarLoop]: === Iteration 686 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:52,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:52,279 INFO L85 PathProgramCache]: Analyzing trace with hash -721599531, now seen corresponding path program 681 times [2022-03-01 17:09:52,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:52,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411730530] [2022-03-01 17:09:52,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:52,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:52,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:52,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411730530] [2022-03-01 17:09:52,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411730530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:52,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:52,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:52,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118761188] [2022-03-01 17:09:52,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:52,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:52,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:52,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:52,395 INFO L87 Difference]: Start difference. First operand 918 states and 3451 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:52,574 INFO L93 Difference]: Finished difference Result 1844 states and 6503 transitions. [2022-03-01 17:09:52,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:52,574 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:52,577 INFO L225 Difference]: With dead ends: 1844 [2022-03-01 17:09:52,577 INFO L226 Difference]: Without dead ends: 1655 [2022-03-01 17:09:52,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:52,577 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 125 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:52,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 120 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:52,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2022-03-01 17:09:52,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 981. [2022-03-01 17:09:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 3.73265306122449) internal successors, (3658), 980 states have internal predecessors, (3658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 3658 transitions. [2022-03-01 17:09:52,592 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 3658 transitions. Word has length 25 [2022-03-01 17:09:52,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:52,593 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 3658 transitions. [2022-03-01 17:09:52,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,593 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 3658 transitions. [2022-03-01 17:09:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:52,594 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:52,594 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] [2022-03-01 17:09:52,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2022-03-01 17:09:52,594 INFO L402 AbstractCegarLoop]: === Iteration 687 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash -707379981, now seen corresponding path program 682 times [2022-03-01 17:09:52,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:52,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090514476] [2022-03-01 17:09:52,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:52,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:52,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090514476] [2022-03-01 17:09:52,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090514476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:52,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:52,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:52,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551299728] [2022-03-01 17:09:52,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:52,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:52,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:52,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:52,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:52,713 INFO L87 Difference]: Start difference. First operand 981 states and 3658 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:52,808 INFO L93 Difference]: Finished difference Result 1749 states and 6201 transitions. [2022-03-01 17:09:52,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:52,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:52,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:52,812 INFO L225 Difference]: With dead ends: 1749 [2022-03-01 17:09:52,812 INFO L226 Difference]: Without dead ends: 1464 [2022-03-01 17:09:52,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:52,812 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:52,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 103 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:52,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-01 17:09:52,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 918. [2022-03-01 17:09:52,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 917 states have (on average 3.7306434023991275) internal successors, (3421), 917 states have internal predecessors, (3421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 3421 transitions. [2022-03-01 17:09:52,827 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 3421 transitions. Word has length 25 [2022-03-01 17:09:52,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:52,828 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 3421 transitions. [2022-03-01 17:09:52,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:52,828 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 3421 transitions. [2022-03-01 17:09:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:52,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:52,829 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] [2022-03-01 17:09:52,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686 [2022-03-01 17:09:52,829 INFO L402 AbstractCegarLoop]: === Iteration 688 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:52,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:52,829 INFO L85 PathProgramCache]: Analyzing trace with hash 244847859, now seen corresponding path program 683 times [2022-03-01 17:09:52,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:52,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174312467] [2022-03-01 17:09:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:52,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:52,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:52,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174312467] [2022-03-01 17:09:52,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174312467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:52,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:52,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:52,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352227676] [2022-03-01 17:09:52,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:52,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:52,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:52,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:52,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:52,948 INFO L87 Difference]: Start difference. First operand 918 states and 3421 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:53,049 INFO L93 Difference]: Finished difference Result 1819 states and 6398 transitions. [2022-03-01 17:09:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:53,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:53,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:53,052 INFO L225 Difference]: With dead ends: 1819 [2022-03-01 17:09:53,052 INFO L226 Difference]: Without dead ends: 1636 [2022-03-01 17:09:53,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:53,053 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 126 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:53,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 102 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2022-03-01 17:09:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 962. [2022-03-01 17:09:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 961 states have (on average 3.718002081165453) internal successors, (3573), 961 states have internal predecessors, (3573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 3573 transitions. [2022-03-01 17:09:53,067 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 3573 transitions. Word has length 25 [2022-03-01 17:09:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:53,067 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 3573 transitions. [2022-03-01 17:09:53,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 3573 transitions. [2022-03-01 17:09:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:53,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:53,083 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] [2022-03-01 17:09:53,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687 [2022-03-01 17:09:53,083 INFO L402 AbstractCegarLoop]: === Iteration 689 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:53,083 INFO L85 PathProgramCache]: Analyzing trace with hash -824671147, now seen corresponding path program 684 times [2022-03-01 17:09:53,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:53,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962648352] [2022-03-01 17:09:53,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:53,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:53,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:53,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962648352] [2022-03-01 17:09:53,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962648352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:53,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:53,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:53,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831309818] [2022-03-01 17:09:53,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:53,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:53,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:53,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:53,225 INFO L87 Difference]: Start difference. First operand 962 states and 3573 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:53,319 INFO L93 Difference]: Finished difference Result 1730 states and 6116 transitions. [2022-03-01 17:09:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:53,322 INFO L225 Difference]: With dead ends: 1730 [2022-03-01 17:09:53,322 INFO L226 Difference]: Without dead ends: 1434 [2022-03-01 17:09:53,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:53,322 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 114 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:53,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 107 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-03-01 17:09:53,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 888. [2022-03-01 17:09:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 887 states have (on average 3.745208568207441) internal successors, (3322), 887 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 3322 transitions. [2022-03-01 17:09:53,335 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 3322 transitions. Word has length 25 [2022-03-01 17:09:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:53,336 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 3322 transitions. [2022-03-01 17:09:53,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 3322 transitions. [2022-03-01 17:09:53,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:53,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:53,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:53,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688 [2022-03-01 17:09:53,337 INFO L402 AbstractCegarLoop]: === Iteration 690 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:53,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:53,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1767925687, now seen corresponding path program 685 times [2022-03-01 17:09:53,337 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:53,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991568741] [2022-03-01 17:09:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:53,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:53,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:53,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991568741] [2022-03-01 17:09:53,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991568741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:53,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:53,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:53,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735051125] [2022-03-01 17:09:53,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:53,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:53,458 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:53,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:53,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:53,458 INFO L87 Difference]: Start difference. First operand 888 states and 3322 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:53,555 INFO L93 Difference]: Finished difference Result 1692 states and 5933 transitions. [2022-03-01 17:09:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:53,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:53,558 INFO L225 Difference]: With dead ends: 1692 [2022-03-01 17:09:53,558 INFO L226 Difference]: Without dead ends: 1503 [2022-03-01 17:09:53,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:53,559 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 118 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:53,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 97 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:53,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2022-03-01 17:09:53,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 888. [2022-03-01 17:09:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 887 states have (on average 3.7181510710259302) internal successors, (3298), 887 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 3298 transitions. [2022-03-01 17:09:53,572 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 3298 transitions. Word has length 25 [2022-03-01 17:09:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:53,572 INFO L470 AbstractCegarLoop]: Abstraction has 888 states and 3298 transitions. [2022-03-01 17:09:53,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 3298 transitions. [2022-03-01 17:09:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:53,585 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:53,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:53,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689 [2022-03-01 17:09:53,586 INFO L402 AbstractCegarLoop]: === Iteration 691 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:53,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:53,586 INFO L85 PathProgramCache]: Analyzing trace with hash 842275669, now seen corresponding path program 686 times [2022-03-01 17:09:53,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:53,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979580861] [2022-03-01 17:09:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:53,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:53,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:53,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979580861] [2022-03-01 17:09:53,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979580861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:53,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:53,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:53,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289531647] [2022-03-01 17:09:53,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:53,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:53,700 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:53,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:53,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:53,701 INFO L87 Difference]: Start difference. First operand 888 states and 3298 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:53,808 INFO L93 Difference]: Finished difference Result 1678 states and 5864 transitions. [2022-03-01 17:09:53,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:53,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:53,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:53,812 INFO L225 Difference]: With dead ends: 1678 [2022-03-01 17:09:53,812 INFO L226 Difference]: Without dead ends: 1479 [2022-03-01 17:09:53,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:53,812 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 104 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:53,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 115 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-03-01 17:09:53,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 864. [2022-03-01 17:09:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 863 states have (on average 3.719582850521437) internal successors, (3210), 863 states have internal predecessors, (3210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 3210 transitions. [2022-03-01 17:09:53,829 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 3210 transitions. Word has length 25 [2022-03-01 17:09:53,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:53,829 INFO L470 AbstractCegarLoop]: Abstraction has 864 states and 3210 transitions. [2022-03-01 17:09:53,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 3210 transitions. [2022-03-01 17:09:53,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:53,830 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:53,830 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:53,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690 [2022-03-01 17:09:53,831 INFO L402 AbstractCegarLoop]: === Iteration 692 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:53,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:53,831 INFO L85 PathProgramCache]: Analyzing trace with hash -195429227, now seen corresponding path program 687 times [2022-03-01 17:09:53,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:53,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405558038] [2022-03-01 17:09:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:53,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:53,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405558038] [2022-03-01 17:09:53,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405558038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:53,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:53,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:53,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921198717] [2022-03-01 17:09:53,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:53,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:53,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:53,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:53,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:53,961 INFO L87 Difference]: Start difference. First operand 864 states and 3210 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:54,062 INFO L93 Difference]: Finished difference Result 1653 states and 5759 transitions. [2022-03-01 17:09:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:54,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:54,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:54,065 INFO L225 Difference]: With dead ends: 1653 [2022-03-01 17:09:54,065 INFO L226 Difference]: Without dead ends: 1464 [2022-03-01 17:09:54,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:54,065 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:54,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 104 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:54,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-03-01 17:09:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 802. [2022-03-01 17:09:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 801 states have (on average 3.6928838951310863) internal successors, (2958), 801 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 2958 transitions. [2022-03-01 17:09:54,079 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 2958 transitions. Word has length 25 [2022-03-01 17:09:54,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:54,079 INFO L470 AbstractCegarLoop]: Abstraction has 802 states and 2958 transitions. [2022-03-01 17:09:54,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 2958 transitions. [2022-03-01 17:09:54,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:54,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:54,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:54,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691 [2022-03-01 17:09:54,081 INFO L402 AbstractCegarLoop]: === Iteration 693 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:54,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:54,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1002221781, now seen corresponding path program 688 times [2022-03-01 17:09:54,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:54,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701463707] [2022-03-01 17:09:54,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:54,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:54,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:54,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701463707] [2022-03-01 17:09:54,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701463707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:54,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:54,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:54,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992050840] [2022-03-01 17:09:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:54,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:54,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:54,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:54,213 INFO L87 Difference]: Start difference. First operand 802 states and 2958 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:54,316 INFO L93 Difference]: Finished difference Result 1558 states and 5457 transitions. [2022-03-01 17:09:54,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:54,316 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:54,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:54,319 INFO L225 Difference]: With dead ends: 1558 [2022-03-01 17:09:54,319 INFO L226 Difference]: Without dead ends: 1273 [2022-03-01 17:09:54,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:54,320 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 100 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:54,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 110 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2022-03-01 17:09:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 739. [2022-03-01 17:09:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 3.68970189701897) internal successors, (2723), 738 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 2723 transitions. [2022-03-01 17:09:54,345 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 2723 transitions. Word has length 25 [2022-03-01 17:09:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:54,345 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 2723 transitions. [2022-03-01 17:09:54,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 2723 transitions. [2022-03-01 17:09:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:54,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:54,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:54,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692 [2022-03-01 17:09:54,346 INFO L402 AbstractCegarLoop]: === Iteration 694 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:54,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1622361331, now seen corresponding path program 689 times [2022-03-01 17:09:54,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:54,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335578315] [2022-03-01 17:09:54,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:54,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:54,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:54,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335578315] [2022-03-01 17:09:54,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335578315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:54,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:54,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:54,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143521365] [2022-03-01 17:09:54,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:54,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:54,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:54,469 INFO L87 Difference]: Start difference. First operand 739 states and 2723 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:54,575 INFO L93 Difference]: Finished difference Result 1488 states and 5227 transitions. [2022-03-01 17:09:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:54,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:54,578 INFO L225 Difference]: With dead ends: 1488 [2022-03-01 17:09:54,578 INFO L226 Difference]: Without dead ends: 1313 [2022-03-01 17:09:54,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:54,578 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 112 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:54,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 104 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1313 states. [2022-03-01 17:09:54,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1313 to 779. [2022-03-01 17:09:54,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 778 states have (on average 3.6799485861182517) internal successors, (2863), 778 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 2863 transitions. [2022-03-01 17:09:54,592 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 2863 transitions. Word has length 25 [2022-03-01 17:09:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:54,592 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 2863 transitions. [2022-03-01 17:09:54,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,592 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 2863 transitions. [2022-03-01 17:09:54,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:54,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:54,593 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] [2022-03-01 17:09:54,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693 [2022-03-01 17:09:54,593 INFO L402 AbstractCegarLoop]: === Iteration 695 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:54,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1840712917, now seen corresponding path program 690 times [2022-03-01 17:09:54,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:54,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402424340] [2022-03-01 17:09:54,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:54,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:54,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:54,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402424340] [2022-03-01 17:09:54,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402424340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:54,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:54,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:54,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632436148] [2022-03-01 17:09:54,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:54,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:54,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:54,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:54,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:54,669 INFO L87 Difference]: Start difference. First operand 779 states and 2863 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:54,732 INFO L93 Difference]: Finished difference Result 1312 states and 4642 transitions. [2022-03-01 17:09:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:54,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:54,734 INFO L225 Difference]: With dead ends: 1312 [2022-03-01 17:09:54,734 INFO L226 Difference]: Without dead ends: 1022 [2022-03-01 17:09:54,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:54,735 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 98 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:54,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 110 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:54,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2022-03-01 17:09:54,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 711. [2022-03-01 17:09:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 710 states have (on average 3.702816901408451) internal successors, (2629), 710 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 2629 transitions. [2022-03-01 17:09:54,745 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 2629 transitions. Word has length 25 [2022-03-01 17:09:54,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:54,745 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 2629 transitions. [2022-03-01 17:09:54,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,745 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 2629 transitions. [2022-03-01 17:09:54,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:54,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:54,746 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] [2022-03-01 17:09:54,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694 [2022-03-01 17:09:54,746 INFO L402 AbstractCegarLoop]: === Iteration 696 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:54,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1773007629, now seen corresponding path program 691 times [2022-03-01 17:09:54,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:54,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782505951] [2022-03-01 17:09:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:54,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:54,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:54,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782505951] [2022-03-01 17:09:54,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782505951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:54,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:54,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:54,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256830985] [2022-03-01 17:09:54,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:54,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:54,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:54,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:54,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:54,824 INFO L87 Difference]: Start difference. First operand 711 states and 2629 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:54,893 INFO L93 Difference]: Finished difference Result 1477 states and 5238 transitions. [2022-03-01 17:09:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:54,893 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:54,896 INFO L225 Difference]: With dead ends: 1477 [2022-03-01 17:09:54,896 INFO L226 Difference]: Without dead ends: 1294 [2022-03-01 17:09:54,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:54,897 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 114 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:54,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 99 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:54,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2022-03-01 17:09:54,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 755. [2022-03-01 17:09:54,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 754 states have (on average 3.7095490716180373) internal successors, (2797), 754 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 2797 transitions. [2022-03-01 17:09:54,909 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 2797 transitions. Word has length 25 [2022-03-01 17:09:54,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:54,909 INFO L470 AbstractCegarLoop]: Abstraction has 755 states and 2797 transitions. [2022-03-01 17:09:54,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:54,909 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 2797 transitions. [2022-03-01 17:09:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:54,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:54,910 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] [2022-03-01 17:09:54,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695 [2022-03-01 17:09:54,911 INFO L402 AbstractCegarLoop]: === Iteration 697 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:54,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:54,911 INFO L85 PathProgramCache]: Analyzing trace with hash -691945003, now seen corresponding path program 692 times [2022-03-01 17:09:54,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:54,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943160198] [2022-03-01 17:09:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:55,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:55,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943160198] [2022-03-01 17:09:55,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943160198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:55,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:55,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:55,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591899023] [2022-03-01 17:09:55,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:55,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:55,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:55,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:55,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:55,025 INFO L87 Difference]: Start difference. First operand 755 states and 2797 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:55,131 INFO L93 Difference]: Finished difference Result 1469 states and 5186 transitions. [2022-03-01 17:09:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:55,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:55,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:55,134 INFO L225 Difference]: With dead ends: 1469 [2022-03-01 17:09:55,134 INFO L226 Difference]: Without dead ends: 1270 [2022-03-01 17:09:55,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:55,134 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:55,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 109 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:55,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2022-03-01 17:09:55,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 731. [2022-03-01 17:09:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 3.710958904109589) internal successors, (2709), 730 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2709 transitions. [2022-03-01 17:09:55,146 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2709 transitions. Word has length 25 [2022-03-01 17:09:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:55,146 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2709 transitions. [2022-03-01 17:09:55,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2709 transitions. [2022-03-01 17:09:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:55,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:55,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:55,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696 [2022-03-01 17:09:55,147 INFO L402 AbstractCegarLoop]: === Iteration 698 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:55,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1904436309, now seen corresponding path program 693 times [2022-03-01 17:09:55,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:55,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496499680] [2022-03-01 17:09:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:55,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:55,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:55,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496499680] [2022-03-01 17:09:55,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496499680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:55,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:55,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:55,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801555994] [2022-03-01 17:09:55,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:55,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:55,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:55,273 INFO L87 Difference]: Start difference. First operand 731 states and 2709 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:55,370 INFO L93 Difference]: Finished difference Result 1397 states and 4922 transitions. [2022-03-01 17:09:55,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:55,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:55,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:55,373 INFO L225 Difference]: With dead ends: 1397 [2022-03-01 17:09:55,373 INFO L226 Difference]: Without dead ends: 1214 [2022-03-01 17:09:55,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:55,373 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 96 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:55,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 110 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:55,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2022-03-01 17:09:55,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 775. [2022-03-01 17:09:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 774 states have (on average 3.6963824289405687) internal successors, (2861), 774 states have internal predecessors, (2861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 2861 transitions. [2022-03-01 17:09:55,384 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 2861 transitions. Word has length 25 [2022-03-01 17:09:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:55,384 INFO L470 AbstractCegarLoop]: Abstraction has 775 states and 2861 transitions. [2022-03-01 17:09:55,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,385 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 2861 transitions. [2022-03-01 17:09:55,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:55,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:55,386 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] [2022-03-01 17:09:55,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697 [2022-03-01 17:09:55,386 INFO L402 AbstractCegarLoop]: === Iteration 699 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:55,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:55,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1620759467, now seen corresponding path program 694 times [2022-03-01 17:09:55,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:55,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718918312] [2022-03-01 17:09:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:55,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:55,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718918312] [2022-03-01 17:09:55,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718918312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:55,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:55,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:55,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014819887] [2022-03-01 17:09:55,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:55,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:55,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:55,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:55,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:55,509 INFO L87 Difference]: Start difference. First operand 775 states and 2861 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:55,603 INFO L93 Difference]: Finished difference Result 1308 states and 4640 transitions. [2022-03-01 17:09:55,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:55,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:55,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:55,605 INFO L225 Difference]: With dead ends: 1308 [2022-03-01 17:09:55,605 INFO L226 Difference]: Without dead ends: 1042 [2022-03-01 17:09:55,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:55,605 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 90 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:55,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 116 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:55,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2022-03-01 17:09:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 731. [2022-03-01 17:09:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 3.6835616438356165) internal successors, (2689), 730 states have internal predecessors, (2689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 2689 transitions. [2022-03-01 17:09:55,616 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 2689 transitions. Word has length 25 [2022-03-01 17:09:55,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:55,616 INFO L470 AbstractCegarLoop]: Abstraction has 731 states and 2689 transitions. [2022-03-01 17:09:55,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,616 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 2689 transitions. [2022-03-01 17:09:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:55,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:55,617 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] [2022-03-01 17:09:55,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698 [2022-03-01 17:09:55,617 INFO L402 AbstractCegarLoop]: === Iteration 700 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2002526025, now seen corresponding path program 695 times [2022-03-01 17:09:55,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:55,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640688704] [2022-03-01 17:09:55,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:55,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:55,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:55,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640688704] [2022-03-01 17:09:55,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640688704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:55,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:55,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:55,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808466623] [2022-03-01 17:09:55,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:55,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:55,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:55,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:55,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:55,705 INFO L87 Difference]: Start difference. First operand 731 states and 2689 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:55,772 INFO L93 Difference]: Finished difference Result 1169 states and 4133 transitions. [2022-03-01 17:09:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:55,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:55,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:55,774 INFO L225 Difference]: With dead ends: 1169 [2022-03-01 17:09:55,774 INFO L226 Difference]: Without dead ends: 994 [2022-03-01 17:09:55,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:55,775 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 102 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:55,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-03-01 17:09:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 771. [2022-03-01 17:09:55,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 3.674025974025974) internal successors, (2829), 770 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 2829 transitions. [2022-03-01 17:09:55,785 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 2829 transitions. Word has length 25 [2022-03-01 17:09:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:55,785 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 2829 transitions. [2022-03-01 17:09:55,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,786 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 2829 transitions. [2022-03-01 17:09:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:55,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:55,787 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] [2022-03-01 17:09:55,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699 [2022-03-01 17:09:55,787 INFO L402 AbstractCegarLoop]: === Iteration 701 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 471405845, now seen corresponding path program 696 times [2022-03-01 17:09:55,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:55,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095358632] [2022-03-01 17:09:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:55,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:55,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:55,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095358632] [2022-03-01 17:09:55,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095358632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:55,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:55,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:55,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721263708] [2022-03-01 17:09:55,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:55,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:55,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:55,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:55,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:55,876 INFO L87 Difference]: Start difference. First operand 771 states and 2829 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:55,955 INFO L93 Difference]: Finished difference Result 993 states and 3548 transitions. [2022-03-01 17:09:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:55,957 INFO L225 Difference]: With dead ends: 993 [2022-03-01 17:09:55,957 INFO L226 Difference]: Without dead ends: 697 [2022-03-01 17:09:55,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:55,957 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 69 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:55,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 121 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:55,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-03-01 17:09:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-03-01 17:09:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 3.7198275862068964) internal successors, (2589), 696 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2589 transitions. [2022-03-01 17:09:55,966 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2589 transitions. Word has length 25 [2022-03-01 17:09:55,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:55,966 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2589 transitions. [2022-03-01 17:09:55,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:55,967 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2589 transitions. [2022-03-01 17:09:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:55,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:55,968 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] [2022-03-01 17:09:55,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2022-03-01 17:09:55,968 INFO L402 AbstractCegarLoop]: === Iteration 702 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:55,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1003874991, now seen corresponding path program 697 times [2022-03-01 17:09:55,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:55,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68341003] [2022-03-01 17:09:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:55,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:55,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:56,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:56,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68341003] [2022-03-01 17:09:56,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68341003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:56,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:56,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:56,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129266578] [2022-03-01 17:09:56,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:56,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:56,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:56,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:56,055 INFO L87 Difference]: Start difference. First operand 697 states and 2589 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:56,128 INFO L93 Difference]: Finished difference Result 1284 states and 4495 transitions. [2022-03-01 17:09:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:56,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:56,130 INFO L225 Difference]: With dead ends: 1284 [2022-03-01 17:09:56,130 INFO L226 Difference]: Without dead ends: 1097 [2022-03-01 17:09:56,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:56,130 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 99 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:56,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 105 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-03-01 17:09:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 725. [2022-03-01 17:09:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 724 states have (on average 3.697513812154696) internal successors, (2677), 724 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 2677 transitions. [2022-03-01 17:09:56,141 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 2677 transitions. Word has length 25 [2022-03-01 17:09:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:56,142 INFO L470 AbstractCegarLoop]: Abstraction has 725 states and 2677 transitions. [2022-03-01 17:09:56,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 2677 transitions. [2022-03-01 17:09:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:56,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:56,143 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] [2022-03-01 17:09:56,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701 [2022-03-01 17:09:56,143 INFO L402 AbstractCegarLoop]: === Iteration 703 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:56,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:56,143 INFO L85 PathProgramCache]: Analyzing trace with hash 77187635, now seen corresponding path program 698 times [2022-03-01 17:09:56,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:56,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312246141] [2022-03-01 17:09:56,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:56,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:56,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:56,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312246141] [2022-03-01 17:09:56,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312246141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:56,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:56,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:56,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696904648] [2022-03-01 17:09:56,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:56,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:56,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:56,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:56,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:56,228 INFO L87 Difference]: Start difference. First operand 725 states and 2677 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:56,296 INFO L93 Difference]: Finished difference Result 1280 states and 4455 transitions. [2022-03-01 17:09:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:56,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:56,298 INFO L225 Difference]: With dead ends: 1280 [2022-03-01 17:09:56,298 INFO L226 Difference]: Without dead ends: 1069 [2022-03-01 17:09:56,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:56,299 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 101 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:56,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 91 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2022-03-01 17:09:56,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 697. [2022-03-01 17:09:56,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 3.7025862068965516) internal successors, (2577), 696 states have internal predecessors, (2577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2577 transitions. [2022-03-01 17:09:56,309 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2577 transitions. Word has length 25 [2022-03-01 17:09:56,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:56,309 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2577 transitions. [2022-03-01 17:09:56,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,309 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2577 transitions. [2022-03-01 17:09:56,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:56,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:56,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:56,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702 [2022-03-01 17:09:56,310 INFO L402 AbstractCegarLoop]: === Iteration 704 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1484777037, now seen corresponding path program 699 times [2022-03-01 17:09:56,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:56,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310763792] [2022-03-01 17:09:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:56,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:56,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:56,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310763792] [2022-03-01 17:09:56,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310763792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:56,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:56,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:56,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563227714] [2022-03-01 17:09:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:56,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:56,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:56,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:56,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:56,395 INFO L87 Difference]: Start difference. First operand 697 states and 2577 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:56,462 INFO L93 Difference]: Finished difference Result 1272 states and 4439 transitions. [2022-03-01 17:09:56,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:56,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:56,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:56,481 INFO L225 Difference]: With dead ends: 1272 [2022-03-01 17:09:56,481 INFO L226 Difference]: Without dead ends: 1085 [2022-03-01 17:09:56,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:56,481 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 98 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:56,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 85 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-03-01 17:09:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 721. [2022-03-01 17:09:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 3.6847222222222222) internal successors, (2653), 720 states have internal predecessors, (2653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2653 transitions. [2022-03-01 17:09:56,491 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2653 transitions. Word has length 25 [2022-03-01 17:09:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:56,491 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2653 transitions. [2022-03-01 17:09:56,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,491 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2653 transitions. [2022-03-01 17:09:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:56,492 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:56,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:56,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2022-03-01 17:09:56,492 INFO L402 AbstractCegarLoop]: === Iteration 705 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:56,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:56,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1121943987, now seen corresponding path program 700 times [2022-03-01 17:09:56,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:56,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543510476] [2022-03-01 17:09:56,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:56,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:56,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:56,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543510476] [2022-03-01 17:09:56,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543510476] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:56,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:56,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:56,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468047891] [2022-03-01 17:09:56,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:56,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:56,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:56,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:56,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:56,575 INFO L87 Difference]: Start difference. First operand 721 states and 2653 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:56,644 INFO L93 Difference]: Finished difference Result 1260 states and 4375 transitions. [2022-03-01 17:09:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:56,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:56,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:56,646 INFO L225 Difference]: With dead ends: 1260 [2022-03-01 17:09:56,646 INFO L226 Difference]: Without dead ends: 1061 [2022-03-01 17:09:56,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:56,646 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 102 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:56,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:56,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-03-01 17:09:56,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 697. [2022-03-01 17:09:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 3.685344827586207) internal successors, (2565), 696 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 2565 transitions. [2022-03-01 17:09:56,656 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 2565 transitions. Word has length 25 [2022-03-01 17:09:56,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:56,656 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 2565 transitions. [2022-03-01 17:09:56,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 2565 transitions. [2022-03-01 17:09:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:56,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:56,657 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] [2022-03-01 17:09:56,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704 [2022-03-01 17:09:56,657 INFO L402 AbstractCegarLoop]: === Iteration 706 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1096772075, now seen corresponding path program 701 times [2022-03-01 17:09:56,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:56,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445189672] [2022-03-01 17:09:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:56,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:56,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:56,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:56,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445189672] [2022-03-01 17:09:56,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445189672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:56,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:56,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:56,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518445888] [2022-03-01 17:09:56,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:56,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:56,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:56,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:56,748 INFO L87 Difference]: Start difference. First operand 697 states and 2565 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:56,817 INFO L93 Difference]: Finished difference Result 1264 states and 4403 transitions. [2022-03-01 17:09:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:56,817 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:56,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:56,819 INFO L225 Difference]: With dead ends: 1264 [2022-03-01 17:09:56,819 INFO L226 Difference]: Without dead ends: 1081 [2022-03-01 17:09:56,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:56,819 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 102 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:56,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 91 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:56,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-03-01 17:09:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 721. [2022-03-01 17:09:56,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 3.6680555555555556) internal successors, (2641), 720 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 2641 transitions. [2022-03-01 17:09:56,829 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 2641 transitions. Word has length 25 [2022-03-01 17:09:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:56,830 INFO L470 AbstractCegarLoop]: Abstraction has 721 states and 2641 transitions. [2022-03-01 17:09:56,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 2641 transitions. [2022-03-01 17:09:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:56,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:56,831 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] [2022-03-01 17:09:56,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705 [2022-03-01 17:09:56,831 INFO L402 AbstractCegarLoop]: === Iteration 707 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:56,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1943569037, now seen corresponding path program 702 times [2022-03-01 17:09:56,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:56,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633205312] [2022-03-01 17:09:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:56,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:56,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:56,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633205312] [2022-03-01 17:09:56,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633205312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:56,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:56,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:56,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843422002] [2022-03-01 17:09:56,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:56,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:56,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:56,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:56,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:56,919 INFO L87 Difference]: Start difference. First operand 721 states and 2641 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:57,004 INFO L93 Difference]: Finished difference Result 1256 states and 4351 transitions. [2022-03-01 17:09:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:57,006 INFO L225 Difference]: With dead ends: 1256 [2022-03-01 17:09:57,006 INFO L226 Difference]: Without dead ends: 1045 [2022-03-01 17:09:57,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:57,006 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 90 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:57,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 84 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-03-01 17:09:57,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 685. [2022-03-01 17:09:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 3.6944444444444446) internal successors, (2527), 684 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2527 transitions. [2022-03-01 17:09:57,016 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2527 transitions. Word has length 25 [2022-03-01 17:09:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:57,016 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2527 transitions. [2022-03-01 17:09:57,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,016 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2527 transitions. [2022-03-01 17:09:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:57,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:57,017 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] [2022-03-01 17:09:57,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706 [2022-03-01 17:09:57,017 INFO L402 AbstractCegarLoop]: === Iteration 708 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:57,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1738335181, now seen corresponding path program 703 times [2022-03-01 17:09:57,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:57,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205600901] [2022-03-01 17:09:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205600901] [2022-03-01 17:09:57,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205600901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:57,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231083331] [2022-03-01 17:09:57,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:57,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:57,102 INFO L87 Difference]: Start difference. First operand 685 states and 2527 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:57,180 INFO L93 Difference]: Finished difference Result 1244 states and 4317 transitions. [2022-03-01 17:09:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:57,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:57,183 INFO L225 Difference]: With dead ends: 1244 [2022-03-01 17:09:57,183 INFO L226 Difference]: Without dead ends: 1057 [2022-03-01 17:09:57,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:57,183 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 88 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:57,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 90 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:57,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2022-03-01 17:09:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 685. [2022-03-01 17:09:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 3.6535087719298245) internal successors, (2499), 684 states have internal predecessors, (2499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 2499 transitions. [2022-03-01 17:09:57,193 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 2499 transitions. Word has length 25 [2022-03-01 17:09:57,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:57,193 INFO L470 AbstractCegarLoop]: Abstraction has 685 states and 2499 transitions. [2022-03-01 17:09:57,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 2499 transitions. [2022-03-01 17:09:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:57,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:57,194 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] [2022-03-01 17:09:57,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707 [2022-03-01 17:09:57,194 INFO L402 AbstractCegarLoop]: === Iteration 709 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:57,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:57,194 INFO L85 PathProgramCache]: Analyzing trace with hash -657272555, now seen corresponding path program 704 times [2022-03-01 17:09:57,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:57,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631135718] [2022-03-01 17:09:57,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:57,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631135718] [2022-03-01 17:09:57,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631135718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:57,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857451103] [2022-03-01 17:09:57,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:57,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:57,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:57,279 INFO L87 Difference]: Start difference. First operand 685 states and 2499 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:57,346 INFO L93 Difference]: Finished difference Result 1240 states and 4277 transitions. [2022-03-01 17:09:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:57,348 INFO L225 Difference]: With dead ends: 1240 [2022-03-01 17:09:57,348 INFO L226 Difference]: Without dead ends: 1029 [2022-03-01 17:09:57,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:57,348 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 90 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:57,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 87 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:57,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-03-01 17:09:57,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 657. [2022-03-01 17:09:57,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 656 states have (on average 3.653963414634146) internal successors, (2397), 656 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 2397 transitions. [2022-03-01 17:09:57,358 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 2397 transitions. Word has length 25 [2022-03-01 17:09:57,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:57,358 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 2397 transitions. [2022-03-01 17:09:57,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 2397 transitions. [2022-03-01 17:09:57,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:57,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:57,359 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] [2022-03-01 17:09:57,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708 [2022-03-01 17:09:57,359 INFO L402 AbstractCegarLoop]: === Iteration 710 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:57,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:57,359 INFO L85 PathProgramCache]: Analyzing trace with hash -722279373, now seen corresponding path program 705 times [2022-03-01 17:09:57,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:57,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043487140] [2022-03-01 17:09:57,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:57,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043487140] [2022-03-01 17:09:57,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043487140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:57,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471684922] [2022-03-01 17:09:57,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:57,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:57,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:57,446 INFO L87 Difference]: Start difference. First operand 657 states and 2397 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:57,518 INFO L93 Difference]: Finished difference Result 1241 states and 4289 transitions. [2022-03-01 17:09:57,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:57,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:57,520 INFO L225 Difference]: With dead ends: 1241 [2022-03-01 17:09:57,520 INFO L226 Difference]: Without dead ends: 1054 [2022-03-01 17:09:57,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:57,520 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 97 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:57,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 88 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:57,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-03-01 17:09:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 703. [2022-03-01 17:09:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 702 states have (on average 3.6381766381766383) internal successors, (2554), 702 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 2554 transitions. [2022-03-01 17:09:57,530 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 2554 transitions. Word has length 25 [2022-03-01 17:09:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:57,530 INFO L470 AbstractCegarLoop]: Abstraction has 703 states and 2554 transitions. [2022-03-01 17:09:57,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 2554 transitions. [2022-03-01 17:09:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:57,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:57,531 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] [2022-03-01 17:09:57,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709 [2022-03-01 17:09:57,532 INFO L402 AbstractCegarLoop]: === Iteration 711 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:57,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:57,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1785306163, now seen corresponding path program 706 times [2022-03-01 17:09:57,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:57,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656639007] [2022-03-01 17:09:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656639007] [2022-03-01 17:09:57,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656639007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:57,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100068371] [2022-03-01 17:09:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:57,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:57,618 INFO L87 Difference]: Start difference. First operand 703 states and 2554 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:57,683 INFO L93 Difference]: Finished difference Result 1148 states and 3993 transitions. [2022-03-01 17:09:57,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:57,684 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:57,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:57,685 INFO L225 Difference]: With dead ends: 1148 [2022-03-01 17:09:57,685 INFO L226 Difference]: Without dead ends: 880 [2022-03-01 17:09:57,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:57,686 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 83 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:57,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 91 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-03-01 17:09:57,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 657. [2022-03-01 17:09:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 656 states have (on average 3.620426829268293) internal successors, (2375), 656 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 2375 transitions. [2022-03-01 17:09:57,695 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 2375 transitions. Word has length 25 [2022-03-01 17:09:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:57,695 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 2375 transitions. [2022-03-01 17:09:57,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 2375 transitions. [2022-03-01 17:09:57,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:57,696 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:57,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:57,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710 [2022-03-01 17:09:57,696 INFO L402 AbstractCegarLoop]: === Iteration 712 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:57,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:57,696 INFO L85 PathProgramCache]: Analyzing trace with hash -334274411, now seen corresponding path program 707 times [2022-03-01 17:09:57,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:57,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796329679] [2022-03-01 17:09:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:57,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,783 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,783 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796329679] [2022-03-01 17:09:57,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796329679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:57,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099036247] [2022-03-01 17:09:57,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:57,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:57,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:57,784 INFO L87 Difference]: Start difference. First operand 657 states and 2375 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:57,851 INFO L93 Difference]: Finished difference Result 1235 states and 4248 transitions. [2022-03-01 17:09:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:57,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:57,853 INFO L225 Difference]: With dead ends: 1235 [2022-03-01 17:09:57,853 INFO L226 Difference]: Without dead ends: 1052 [2022-03-01 17:09:57,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:57,854 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 96 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:57,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 82 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-03-01 17:09:57,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 701. [2022-03-01 17:09:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 700 states have (on average 3.61) internal successors, (2527), 700 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 2527 transitions. [2022-03-01 17:09:57,864 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 2527 transitions. Word has length 25 [2022-03-01 17:09:57,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:57,864 INFO L470 AbstractCegarLoop]: Abstraction has 701 states and 2527 transitions. [2022-03-01 17:09:57,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 2527 transitions. [2022-03-01 17:09:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:57,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:57,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:57,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711 [2022-03-01 17:09:57,865 INFO L402 AbstractCegarLoop]: === Iteration 713 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash 870374771, now seen corresponding path program 708 times [2022-03-01 17:09:57,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:57,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504743227] [2022-03-01 17:09:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:57,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:57,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504743227] [2022-03-01 17:09:57,952 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504743227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:57,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:57,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:57,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412796666] [2022-03-01 17:09:57,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:57,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:57,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:57,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:57,953 INFO L87 Difference]: Start difference. First operand 701 states and 2527 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,016 INFO L93 Difference]: Finished difference Result 1146 states and 3966 transitions. [2022-03-01 17:09:58,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:58,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,018 INFO L225 Difference]: With dead ends: 1146 [2022-03-01 17:09:58,018 INFO L226 Difference]: Without dead ends: 858 [2022-03-01 17:09:58,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:58,018 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 80 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 89 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:58,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2022-03-01 17:09:58,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 635. [2022-03-01 17:09:58,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 3.6277602523659307) internal successors, (2300), 634 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2300 transitions. [2022-03-01 17:09:58,027 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2300 transitions. Word has length 25 [2022-03-01 17:09:58,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:58,027 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 2300 transitions. [2022-03-01 17:09:58,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2300 transitions. [2022-03-01 17:09:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:58,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:58,028 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] [2022-03-01 17:09:58,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712 [2022-03-01 17:09:58,028 INFO L402 AbstractCegarLoop]: === Iteration 714 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:58,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:58,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1767245845, now seen corresponding path program 709 times [2022-03-01 17:09:58,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:58,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902136252] [2022-03-01 17:09:58,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:58,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:58,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:58,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:58,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902136252] [2022-03-01 17:09:58,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902136252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:58,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:58,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:58,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121172264] [2022-03-01 17:09:58,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:58,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:58,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:58,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:58,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:58,112 INFO L87 Difference]: Start difference. First operand 635 states and 2300 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,178 INFO L93 Difference]: Finished difference Result 1126 states and 3846 transitions. [2022-03-01 17:09:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:58,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,180 INFO L225 Difference]: With dead ends: 1126 [2022-03-01 17:09:58,180 INFO L226 Difference]: Without dead ends: 939 [2022-03-01 17:09:58,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:58,181 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 86 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 80 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:58,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-03-01 17:09:58,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 635. [2022-03-01 17:09:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 3.589905362776025) internal successors, (2276), 634 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 2276 transitions. [2022-03-01 17:09:58,189 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 2276 transitions. Word has length 25 [2022-03-01 17:09:58,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:58,189 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 2276 transitions. [2022-03-01 17:09:58,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 2276 transitions. [2022-03-01 17:09:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:58,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:58,190 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] [2022-03-01 17:09:58,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713 [2022-03-01 17:09:58,190 INFO L402 AbstractCegarLoop]: === Iteration 715 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash 78999573, now seen corresponding path program 710 times [2022-03-01 17:09:58,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:58,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120112756] [2022-03-01 17:09:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:58,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:58,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:58,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120112756] [2022-03-01 17:09:58,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120112756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:58,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:58,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:58,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153946541] [2022-03-01 17:09:58,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:58,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:58,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:58,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:58,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:58,277 INFO L87 Difference]: Start difference. First operand 635 states and 2276 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,341 INFO L93 Difference]: Finished difference Result 1114 states and 3782 transitions. [2022-03-01 17:09:58,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,343 INFO L225 Difference]: With dead ends: 1114 [2022-03-01 17:09:58,343 INFO L226 Difference]: Without dead ends: 915 [2022-03-01 17:09:58,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:58,343 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 103 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 78 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:58,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-03-01 17:09:58,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 611. [2022-03-01 17:09:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 3.586885245901639) internal successors, (2188), 610 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 2188 transitions. [2022-03-01 17:09:58,352 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 2188 transitions. Word has length 25 [2022-03-01 17:09:58,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:58,352 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 2188 transitions. [2022-03-01 17:09:58,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 2188 transitions. [2022-03-01 17:09:58,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:58,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:58,353 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] [2022-03-01 17:09:58,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714 [2022-03-01 17:09:58,353 INFO L402 AbstractCegarLoop]: === Iteration 716 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:58,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash -196109069, now seen corresponding path program 711 times [2022-03-01 17:09:58,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:58,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159188239] [2022-03-01 17:09:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:58,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:58,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159188239] [2022-03-01 17:09:58,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159188239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:58,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:58,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:58,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889525469] [2022-03-01 17:09:58,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:58,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:58,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:58,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:58,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:58,445 INFO L87 Difference]: Start difference. First operand 611 states and 2188 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,513 INFO L93 Difference]: Finished difference Result 1089 states and 3677 transitions. [2022-03-01 17:09:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:58,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:58,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,515 INFO L225 Difference]: With dead ends: 1089 [2022-03-01 17:09:58,515 INFO L226 Difference]: Without dead ends: 902 [2022-03-01 17:09:58,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:58,515 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 113 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 80 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:58,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-03-01 17:09:58,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 551. [2022-03-01 17:09:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 550 states have (on average 3.5309090909090908) internal successors, (1942), 550 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 1942 transitions. [2022-03-01 17:09:58,526 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 1942 transitions. Word has length 25 [2022-03-01 17:09:58,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:58,526 INFO L470 AbstractCegarLoop]: Abstraction has 551 states and 1942 transitions. [2022-03-01 17:09:58,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 1942 transitions. [2022-03-01 17:09:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:58,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:58,527 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] [2022-03-01 17:09:58,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715 [2022-03-01 17:09:58,527 INFO L402 AbstractCegarLoop]: === Iteration 717 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:58,528 INFO L85 PathProgramCache]: Analyzing trace with hash -800059371, now seen corresponding path program 712 times [2022-03-01 17:09:58,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:58,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640571482] [2022-03-01 17:09:58,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:58,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:58,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:58,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:58,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640571482] [2022-03-01 17:09:58,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640571482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:58,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:58,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:58,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673969968] [2022-03-01 17:09:58,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:58,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:58,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:58,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:58,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:58,612 INFO L87 Difference]: Start difference. First operand 551 states and 1942 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,668 INFO L93 Difference]: Finished difference Result 996 states and 3381 transitions. [2022-03-01 17:09:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,670 INFO L225 Difference]: With dead ends: 996 [2022-03-01 17:09:58,670 INFO L226 Difference]: Without dead ends: 728 [2022-03-01 17:09:58,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:58,670 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 117 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 90 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-03-01 17:09:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 505. [2022-03-01 17:09:58,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 504 states have (on average 3.501984126984127) internal successors, (1765), 504 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 1765 transitions. [2022-03-01 17:09:58,677 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 1765 transitions. Word has length 25 [2022-03-01 17:09:58,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:58,677 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 1765 transitions. [2022-03-01 17:09:58,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 1765 transitions. [2022-03-01 17:09:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:58,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:58,678 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] [2022-03-01 17:09:58,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716 [2022-03-01 17:09:58,678 INFO L402 AbstractCegarLoop]: === Iteration 718 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:58,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 392046613, now seen corresponding path program 713 times [2022-03-01 17:09:58,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:58,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550529122] [2022-03-01 17:09:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:58,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:58,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550529122] [2022-03-01 17:09:58,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550529122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:58,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:58,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:58,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668471952] [2022-03-01 17:09:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:58,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:58,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:58,774 INFO L87 Difference]: Start difference. First operand 505 states and 1765 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:58,850 INFO L93 Difference]: Finished difference Result 943 states and 3209 transitions. [2022-03-01 17:09:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:58,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:58,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:58,852 INFO L225 Difference]: With dead ends: 943 [2022-03-01 17:09:58,852 INFO L226 Difference]: Without dead ends: 768 [2022-03-01 17:09:58,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:58,852 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 84 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:58,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 83 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2022-03-01 17:09:58,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 545. [2022-03-01 17:09:58,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 3.5018382352941178) internal successors, (1905), 544 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 1905 transitions. [2022-03-01 17:09:58,859 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 1905 transitions. Word has length 25 [2022-03-01 17:09:58,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:58,860 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 1905 transitions. [2022-03-01 17:09:58,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:58,860 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 1905 transitions. [2022-03-01 17:09:58,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:58,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:58,860 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] [2022-03-01 17:09:58,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717 [2022-03-01 17:09:58,861 INFO L402 AbstractCegarLoop]: === Iteration 719 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1428988813, now seen corresponding path program 714 times [2022-03-01 17:09:58,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:58,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577649884] [2022-03-01 17:09:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:58,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:58,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:58,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577649884] [2022-03-01 17:09:58,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577649884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:58,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:58,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:58,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192780468] [2022-03-01 17:09:58,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:58,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:58,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:58,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:58,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:58,958 INFO L87 Difference]: Start difference. First operand 545 states and 1905 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:59,027 INFO L93 Difference]: Finished difference Result 767 states and 2624 transitions. [2022-03-01 17:09:59,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:59,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:59,029 INFO L225 Difference]: With dead ends: 767 [2022-03-01 17:09:59,029 INFO L226 Difference]: Without dead ends: 485 [2022-03-01 17:09:59,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:59,029 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 76 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:59,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 82 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:59,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-03-01 17:09:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2022-03-01 17:09:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 3.5020661157024793) internal successors, (1695), 484 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1695 transitions. [2022-03-01 17:09:59,035 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1695 transitions. Word has length 25 [2022-03-01 17:09:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,035 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1695 transitions. [2022-03-01 17:09:59,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1695 transitions. [2022-03-01 17:09:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:59,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:59,036 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] [2022-03-01 17:09:59,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718 [2022-03-01 17:09:59,036 INFO L402 AbstractCegarLoop]: === Iteration 720 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1846766583, now seen corresponding path program 715 times [2022-03-01 17:09:59,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:59,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367899484] [2022-03-01 17:09:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:59,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:59,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367899484] [2022-03-01 17:09:59,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367899484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:59,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:59,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:59,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142567276] [2022-03-01 17:09:59,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:59,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:59,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:59,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:59,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:59,164 INFO L87 Difference]: Start difference. First operand 485 states and 1695 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:59,252 INFO L93 Difference]: Finished difference Result 796 states and 2668 transitions. [2022-03-01 17:09:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:59,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:59,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:59,253 INFO L225 Difference]: With dead ends: 796 [2022-03-01 17:09:59,253 INFO L226 Difference]: Without dead ends: 613 [2022-03-01 17:09:59,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:59,253 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:59,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 76 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:59,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-03-01 17:09:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 485. [2022-03-01 17:09:59,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 3.4524793388429753) internal successors, (1671), 484 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 1671 transitions. [2022-03-01 17:09:59,260 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 1671 transitions. Word has length 25 [2022-03-01 17:09:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,260 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 1671 transitions. [2022-03-01 17:09:59,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 1671 transitions. [2022-03-01 17:09:59,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:59,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:59,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 17:09:59,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719 [2022-03-01 17:09:59,261 INFO L402 AbstractCegarLoop]: === Iteration 721 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:59,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:59,261 INFO L85 PathProgramCache]: Analyzing trace with hash 999969621, now seen corresponding path program 716 times [2022-03-01 17:09:59,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:59,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252390980] [2022-03-01 17:09:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:59,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:59,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:59,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:59,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252390980] [2022-03-01 17:09:59,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252390980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:59,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:59,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:59,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257873477] [2022-03-01 17:09:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:59,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:59,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:59,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:59,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:59,382 INFO L87 Difference]: Start difference. First operand 485 states and 1671 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:59,468 INFO L93 Difference]: Finished difference Result 788 states and 2616 transitions. [2022-03-01 17:09:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:59,468 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:59,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:59,470 INFO L225 Difference]: With dead ends: 788 [2022-03-01 17:09:59,470 INFO L226 Difference]: Without dead ends: 589 [2022-03-01 17:09:59,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:59,470 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 70 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:59,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 75 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 17:09:59,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-03-01 17:09:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 461. [2022-03-01 17:09:59,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 3.4413043478260867) internal successors, (1583), 460 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 1583 transitions. [2022-03-01 17:09:59,476 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 1583 transitions. Word has length 25 [2022-03-01 17:09:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,476 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 1583 transitions. [2022-03-01 17:09:59,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 1583 transitions. [2022-03-01 17:09:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:59,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:59,477 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] [2022-03-01 17:09:59,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720 [2022-03-01 17:09:59,477 INFO L402 AbstractCegarLoop]: === Iteration 722 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash -116588331, now seen corresponding path program 717 times [2022-03-01 17:09:59,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:59,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496574060] [2022-03-01 17:09:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:59,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:59,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496574060] [2022-03-01 17:09:59,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496574060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:59,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:59,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:59,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099349106] [2022-03-01 17:09:59,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:59,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:59,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:59,563 INFO L87 Difference]: Start difference. First operand 461 states and 1583 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:59,625 INFO L93 Difference]: Finished difference Result 716 states and 2352 transitions. [2022-03-01 17:09:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:59,626 INFO L225 Difference]: With dead ends: 716 [2022-03-01 17:09:59,626 INFO L226 Difference]: Without dead ends: 533 [2022-03-01 17:09:59,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:59,627 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:59,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 76 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-03-01 17:09:59,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 405. [2022-03-01 17:09:59,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.344059405940594) internal successors, (1351), 404 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1351 transitions. [2022-03-01 17:09:59,632 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 1351 transitions. Word has length 25 [2022-03-01 17:09:59,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,632 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 1351 transitions. [2022-03-01 17:09:59,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,632 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 1351 transitions. [2022-03-01 17:09:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:59,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:59,633 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] [2022-03-01 17:09:59,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721 [2022-03-01 17:09:59,633 INFO L402 AbstractCegarLoop]: === Iteration 723 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:59,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2023474987, now seen corresponding path program 718 times [2022-03-01 17:09:59,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:59,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125362766] [2022-03-01 17:09:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:59,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:59,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125362766] [2022-03-01 17:09:59,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125362766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:59,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:59,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:59,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425932531] [2022-03-01 17:09:59,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:59,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:59,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:59,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:59,713 INFO L87 Difference]: Start difference. First operand 405 states and 1351 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:59,761 INFO L93 Difference]: Finished difference Result 627 states and 2070 transitions. [2022-03-01 17:09:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:59,762 INFO L225 Difference]: With dead ends: 627 [2022-03-01 17:09:59,762 INFO L226 Difference]: Without dead ends: 361 [2022-03-01 17:09:59,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:59,762 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 66 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:59,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 73 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:59,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-03-01 17:09:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-03-01 17:09:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 3.275) internal successors, (1179), 360 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 1179 transitions. [2022-03-01 17:09:59,766 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 1179 transitions. Word has length 25 [2022-03-01 17:09:59,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,766 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 1179 transitions. [2022-03-01 17:09:59,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 1179 transitions. [2022-03-01 17:09:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:59,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:59,767 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] [2022-03-01 17:09:59,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722 [2022-03-01 17:09:59,767 INFO L402 AbstractCegarLoop]: === Iteration 724 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:59,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:59,767 INFO L85 PathProgramCache]: Analyzing trace with hash -973336397, now seen corresponding path program 719 times [2022-03-01 17:09:59,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:59,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151145987] [2022-03-01 17:09:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:59,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:59,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:59,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151145987] [2022-03-01 17:09:59,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151145987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:59,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:59,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:59,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127794755] [2022-03-01 17:09:59,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:59,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:59,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:59,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:59,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:59,846 INFO L87 Difference]: Start difference. First operand 361 states and 1179 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:09:59,902 INFO L93 Difference]: Finished difference Result 488 states and 1563 transitions. [2022-03-01 17:09:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:09:59,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:09:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:09:59,903 INFO L225 Difference]: With dead ends: 488 [2022-03-01 17:09:59,903 INFO L226 Difference]: Without dead ends: 313 [2022-03-01 17:09:59,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:09:59,903 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 77 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:09:59,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 66 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:09:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-03-01 17:09:59,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2022-03-01 17:09:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 3.1378205128205128) internal successors, (979), 312 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 979 transitions. [2022-03-01 17:09:59,906 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 979 transitions. Word has length 25 [2022-03-01 17:09:59,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:09:59,906 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 979 transitions. [2022-03-01 17:09:59,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:09:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 979 transitions. [2022-03-01 17:09:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-03-01 17:09:59,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 17:09:59,907 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] [2022-03-01 17:09:59,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723 [2022-03-01 17:09:59,907 INFO L402 AbstractCegarLoop]: === Iteration 725 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-01 17:09:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 17:09:59,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1590859755, now seen corresponding path program 720 times [2022-03-01 17:09:59,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 17:09:59,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44436807] [2022-03-01 17:09:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 17:09:59,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 17:09:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 17:09:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 17:09:59,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 17:09:59,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44436807] [2022-03-01 17:09:59,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44436807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 17:09:59,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 17:09:59,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 17:09:59,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457122559] [2022-03-01 17:09:59,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 17:09:59,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 17:09:59,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 17:09:59,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 17:09:59,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-01 17:09:59,990 INFO L87 Difference]: Start difference. First operand 313 states and 979 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:00,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 17:10:00,036 INFO L93 Difference]: Finished difference Result 312 states and 978 transitions. [2022-03-01 17:10:00,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 17:10:00,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-03-01 17:10:00,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 17:10:00,037 INFO L225 Difference]: With dead ends: 312 [2022-03-01 17:10:00,037 INFO L226 Difference]: Without dead ends: 0 [2022-03-01 17:10:00,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-03-01 17:10:00,037 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 48 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 17:10:00,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 59 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 17:10:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-01 17:10:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-01 17:10:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-01 17:10:00,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-03-01 17:10:00,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 17:10:00,038 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-01 17:10:00,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 17:10:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-01 17:10:00,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (5 of 7 remaining) [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (4 of 7 remaining) [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (1 of 7 remaining) [2022-03-01 17:10:00,041 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATION (0 of 7 remaining) [2022-03-01 17:10:00,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724 [2022-03-01 17:10:00,043 INFO L732 BasicCegarLoop]: Path program histogram: [720, 1, 1, 1, 1, 1] [2022-03-01 17:10:00,047 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 17:10:00,047 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 17:10:00,049 INFO L202 PluginConnector]: Adding new model example_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 05:10:00 BasicIcfg [2022-03-01 17:10:00,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 17:10:00,050 INFO L158 Benchmark]: Toolchain (without parser) took 171328.29ms. Allocated memory was 198.2MB in the beginning and 857.7MB in the end (delta: 659.6MB). Free memory was 161.3MB in the beginning and 433.8MB in the end (delta: -272.5MB). Peak memory consumption was 388.6MB. Max. memory is 8.0GB. [2022-03-01 17:10:00,050 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 198.2MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 17:10:00,050 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.30ms. Allocated memory is still 198.2MB. Free memory was 161.3MB in the beginning and 159.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 17:10:00,055 INFO L158 Benchmark]: Boogie Preprocessor took 9.04ms. Allocated memory is still 198.2MB. Free memory was 159.7MB in the beginning and 158.8MB in the end (delta: 880.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 17:10:00,063 INFO L158 Benchmark]: RCFGBuilder took 182.45ms. Allocated memory is still 198.2MB. Free memory was 158.7MB in the beginning and 150.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-01 17:10:00,064 INFO L158 Benchmark]: TraceAbstraction took 171116.17ms. Allocated memory was 198.2MB in the beginning and 857.7MB in the end (delta: 659.6MB). Free memory was 149.7MB in the beginning and 433.8MB in the end (delta: -284.1MB). Peak memory consumption was 377.0MB. Max. memory is 8.0GB. [2022-03-01 17:10:00,075 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 0.10ms. Allocated memory is still 198.2MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.30ms. Allocated memory is still 198.2MB. Free memory was 161.3MB in the beginning and 159.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.04ms. Allocated memory is still 198.2MB. Free memory was 159.7MB in the beginning and 158.8MB in the end (delta: 880.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 182.45ms. Allocated memory is still 198.2MB. Free memory was 158.7MB in the beginning and 150.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 171116.17ms. Allocated memory was 198.2MB in the beginning and 857.7MB in the end (delta: 659.6MB). Free memory was 149.7MB in the beginning and 433.8MB in the end (delta: -284.1MB). Peak memory consumption was 377.0MB. 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 - PositiveResult [Line: 25]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 58 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 171.0s, OverallIterations: 725, TraceHistogramMax: 1, PathProgramHistogramMax: 720, EmptinessCheckTime: 1.5s, AutomataDifference: 74.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75990 SdHoareTripleChecker+Valid, 45.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75990 mSDsluCounter, 103493 SdHoareTripleChecker+Invalid, 38.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128405 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110121 IncrementalHoareTripleChecker+Invalid, 110131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 37171 mSDtfsCounter, 110121 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5775 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 5045 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 45.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4461occurred in iteration=0, InterpolantAutomatonStates: 5775, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.4s AutomataMinimizationTime, 725 MinimizatonAttempts, 806803 StatesRemovedByMinimization, 714 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 72.1s InterpolantComputationTime, 18125 NumberOfCodeBlocks, 18125 NumberOfCodeBlocksAsserted, 725 NumberOfCheckSat, 17400 ConstructedInterpolants, 0 QuantifiedInterpolants, 423525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 725 InterpolantComputations, 725 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-01 17:10:00,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...